Cubic Zirconia Tanzanite Color Stones with high Quality China wholesale



CZ-Tanzanite-Colored-Round-Stones

Cubic Zirconia Tanzanite Color Stones Wholesale from China:


Tanzanite is an extraordinary gemstone. It occurs in only one place worldwide. Its blue, surrounded by a fine hint of purple,is a wonderful colour. Thanks to its unusual aura and the help of the New York jeweller's Tiffany, it has rapidly become one of the most coveted gemstones in the world.
The deep blue of the tanzanite is fantastic, and runs from ultramarine blue to light violet-blue. The most coveted colour is a blue surrounded by a delicate hint of purple, which has a particularly wonderful effect in sizes of over 10 carats.
A tanzanite will continue to fascinate with its unusual, captivating aura. Its deep blue with the slightly purple tinge is one of the most extravagant colours known to Man.

And Now you can buy CZ Tanzanite Color Loose stones with an excellent simulant of Real Tanzanite stones at Wholesale Direct Factory prices from the Real China Professional Manufacturer and Supplier.

We have quite a collection of Tanzanite Color CZ Loose Stones such as popular Round Brilliant Cut,Princess Cut,Emerald Cut,Cushion Cut and also unique heart,Oval,Octagon,Marquise,Pear,Star Cuts and Much More...
Any Special Shape and styles are available.

--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World. 


Cubic-zirconia-Tanzanite-Colored-Stones

We can manufacture any sizes you need,please feel free to contact us Via Emal or Call.

Free Quote:
info@frgems.com
www.frgems.com 
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Loose CZ Stone Pink colored stone China wholesale



Cubic-zirconia-Pink-Colored-Round-Stones

Loose CZ Stone Pink colored stone China wholesale:

--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World.


--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World.
Cubic-zirconia-Pink-Colored-Stones

The Following are the Normal/Standard sizes for each cuts Of CZ Pink Color Stones For your Reference:                      
CZ Pink Color Round:1.0mm               1.20mm            1.25mm            1.30mm            1.35mm           1.40mm
1.45mm             1.50mm            1.65mm            1.75mm            1.85mm           2.00mm
2.15mm             2.25mm            2.35mm            2.45mm            2.50mm           2.65mm
2.75mm             2.85mm            3.00mm            3.25mm            3.50mm           3.75mm
4.00mm             4.25mm            4.50mm            4.75mm            5.00mm           5.25mm
5.50mm             5.75mm            6.00mm            6.50mm            7.00mm           7.50mm
8.00mm             8.50mm            9.00mm            9.50mm           10.00mm         11.00mm
12.00mm          13.00mm          14.00mm          15.00mm           16.00mm         17.00mm
18.00mm         19.00mm           20.00mm

CZ Pink Color Square:2×2mm          2.5×2.5mm          3×3mm             3.5×3.5mm        4×4mm          5×5mm
6×6mm          7×7mm               8×8mm              9×9mm           10×10mm      11×11mm
12×12mm     13×13mm            14×14mm         15×15mm          16×16mm      17×17mm
18×18mm     19×19mm            20×20mm

CZ Pink Color Oval & Pear:
3×5mm           4×6mm                5×7mm              6×8mm              7×9mm           8×10mm
9×11mm        10×12mm           10×14mm          12×16mm          13×18mm          15×20mm

CZ Pink Color Marquise:
2×4mm           2.5×5mm             3×6mm             3.5×7mm           4×8mm            5×10mm
6×12mm         7×14mm              8×20mm           7×24mm            6×18mm           7×12mm

CZ Pink Color Baguette & Octagon:
2×4mm          2.5×5mm              3×5mm             3×6mm               4×6mm            4×8mm
5×7mm          6×8mm                  7×9mm           8×10mm            9×11mm           8×20mm
5×20mm       10×12mm             10×14mm         10×16mm          12×16mm         13×18mm                                         15×20mm     16×22mm             12×20mm         15×22mm          16×20mm           9×16mm

CZ Pink Heart & Triangle & Trillion:
3×3mm         4×4mm                 5×5mm             6×6mm               7×7mm           8×8mm
9×9mm       10×10mm            11×11mm          12×12mm           13×13mm        14×14mm
15×15mm     16×16mm           17×17mm          18×18mm          19×19mm         20×20mm

CZ Pink Color Beads & Balls:3.00mm           4.00mm               5.00mm              6.00mm            7.00mm            8.00mm        
9.00mm           10.00mm             11.00mm           12.00mm

CZ Pink Color Star:5×5mm             6×6mm                7×7mm             8×8mm             10×10mm          12×12mm 




Contact us to get a Free Quote for your Ideal Loose CZ Pink Color Stones from China Supplier and Manufacturer.
Free Quote: info@frgems.com 
Website: www.frgems.com  
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Cubic Zirconia Peridot Color Stones China Wholesale



Loose Cubic Zirconia Peridot Color Stones China Wholesale:

Cubic Zirconia Green Peridot(Olive Green) - CZ Green Peridot - CZ Green Peridot Diamond; 
Cubic-Zirconia-Peridot-Color-Stones-China-Wholesale
The vivid green of the peridot,with just a slight hint of gold, is the ideal gemstone colour to go with that light summer wardrobe.
No wonder – since the peridot is the gemstone of the summer month of August.   
The brilliant, shimmering green color of Peridot, works well within the current celebrity trends of wedding and casual jewelry. Peridot adds the perfect splash of color and dazzle to gold, white gold and platinum settings without losing any of the elegance that is customary with engagement and wedding jewelry.  

At Fu Rong Gems, you can buy CZ Peridot -Olive Green Color Loose Cubic Zirconia stones at Wholesale Direct Factory prices from the Real China Professional Manufacturer and Supplier.

We have quite a collection of Peridot Color CZ Loose Stones such as popular Round Brilliant Cut,Princess Cut,Emerald Cut,Cushion Cut and also unique heart, Oval,Octagon,Marquise, Pear,Star Cuts and Much More...
Any Special Shape and styles are available.
--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World.


We can manufacture any sizes you need,please feel free to contact us Via Email or Call.
Free Quote: info@frgems.com
Website: www.frgems.com 
Blogger: blog.frgems.com 

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Cubic Zirconia Aquamarine Color Round stones China Wholesale



Cubic Zirconia Aquamarine Color Round stones China Wholesale:

Loose-Cubic-Zirconia-Aquamarine-Color-Round-stones-China-Wholesale
--We Supply and Manufacture wide range of Loose Cubic Zirconia, Lab Created Gems,Simulated stones and other Synthetic Gemstones in All Shapes and Sizes.

--Top High Quality in Hand Cutting and Machine Cutting.


Sizes Available:1.00-25.00mm
We can manufacture any sizes you need,Please feel free to contact us Via Email or Call for the prices of loose Cubic Zirconia Aquamarine Color Round stones from China Wholesaler and supplier.

Free Quote: info@frgems.com
Website: www.frgems.com 
Blogger: blog.frgems.com 

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Cubic Zirconia Amethyst Color Round AAA Stones China Supplier and Wholesale



Cubic Zirconia Amethyst Color Round AAA Quality:

Cubic-Zirconia-Amethyst-Color-Round-stone--We Supply and Manufacture wide range of Loose Cubic Zirconia, Lab Created Gems,Simulated stones and other Synthetic Gemstones in All Shapes and Sizes.

--Top High Quality in Hand Cutting and Machine Cutting.

--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World..


Cubic Zirconia Amethyst Round AAA Quality:
  • Cubic zirconia Amethyst Round aaa Quality, 1.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 1.25 mm
  • Cubic zirconia Amethyst Round aaa Quality, 1.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 1.75 mm
  • Cubic zirconia Amethyst Round aaa Quality, 2.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 2.25 mm
  • Cubic zirconia Amethyst Round aaa Quality, 2.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 2.75 mm
  • Cubic zirconia Amethyst Round aaa Quality, 3.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 3.25 mm
  • Cubic zirconia Amethyst Round aaa Quality, 3.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 3.75 mm
  • Cubic zirconia Amethyst Round aaa Quality, 4.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 4.25 mm
  • Cubic zirconia Amethyst Round aaa Quality, 4.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 4.75mm
  • Cubic zirconia Amethyst Round aaa Quality, 5.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 5.25 mm
  • Cubic zirconia Amethyst Round aaa Quality, 5.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 5.75 mm
  • Cubic zirconia Amethyst Round aaa Quality, 6.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 6.25 mm
  • Cubic zirconia Amethyst Round aaa Quality, 6.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 6.75 mm
  • Cubic zirconia Amethyst Round aaa Quality, 7.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 7.25 mm
  • Cubic zirconia Amethyst Round aaa Quality, 7.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 7.75 mm
  • Cubic zirconia Amethyst Round aaa Quality, 8.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 8.50 mm
  • Cubic zirconia Amethyst Round aaa Quality, 9.00 mm
  • Cubic zirconia Amethyst Round aaa Quality, 10.00 mm
  • and more bigger sizes 11mm-30mm
Free Quote: info@frgems.com
Website: www.frgems.com 
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Loose Cubic Zirconia white AAAAA top quality stones wholesale



Cubic Zirconia White Color Round AAAAA Quality: (Highest Quality)

Loose White cz Color Gemstones is an excellent substitute for diamond.



CZ has all the sparkle of a natural diamond at a fraction of the cost.

White cubic zirconia stones are graded for quality.These resemble genuine diamonds.Usually,they are graded as A, AAA, and AAAAA with cubic zirconia AAAAA being the highest grade on the CZ Market.
CZ AAA stones are the most popular among jewelry stores because they still offer great quality at affordable prices.

At Fu Rong Gems, you can Buy White CZ Loose Stones With Quality Grades A to Top Grade Quality AAAAA at Wholesale Direct Factory prices from the Real China Professional Manufacturer and Supplier.

The Following are the Normal/Standard sizes for each cuts/shapes of 5A Quality Stones For your Reference:



Round:
1.0mm 1.20mm 1.25mm 1.30mm 1.35mm 1.40mm
1.45mm 1.50mm 1.65mm 1.75mm 1.85mm 2.00mm
2.15mm 2.25mm 2.35mm 2.45mm 2.50mm 2.65mm
2.75mm 2.85mm 3.00mm 3.25mm 3.50mm 3.75mm
4.00mm 4.25mm 4.50mm 4.75mm 5.00mm 5.25mm
5.50mm 5.75mm 6.00mm 6.50mm 7.00mm 7.50mm
8.00mm 8.50mm 9.00mm 9.50mm 10.00mm 11.00mm
12.00mm 13.00mm 14.00mm 15.00mm 16.00mm 17.00mm
18.00mm 19.00mm 20.00mm



Square:

2×2mm 2.5×2.5mm 3×3mm 3.5×3.5mm 4×4mm 5×5mm
6×6mm 7×7mm 8×8mm 9×9mm 10×10mm 11×11mm
12×12mm 13×13mm 14×14mm 15×15mm 16×16mm 17×17mm
18×18mm 19×19mm 20×20mm



Oval and Pear:
3×5mm 4×6mm 5×7mm 6×8mm 7×9mm 8×10mm
9×11mm 10×12mm 10×14mm 12×16mm 13×18mm 15×20mm

Marquise:2×4mm 2.5×5mm 3×6mm 3.5×7mm 4×8mm 5×10mm
6×12mm 7×14mm 8×20mm 7×24mm 6×18mm 7×12mm

Baguette and Octagon:
2×4mm 2.5×5mm 3×5mm 3×6mm 4×6mm 4×8mm
5×7mm 6×8mm 7×9mm 8×10mm 9×11mm 8×20mm
5×20mm 10×12mm 10×14mm 10×16mm 12×16mm 13×18mm 15×20mm 16×22mm 12×20mm 15×22mm 16×20mm 9×16mm

Heart ; Triangle; Trillion:
3×3mm 4×4mm 5×5mm 6×6mm 7×7mm 8×8mm


9×9mm 10×10mm 11×11mm 12×12mm 13×13mm 14×14mm


15×15mm 16×16mm 17×17mm 18×18mm 19×19mm 20×20mm


Beads and Balls:


3.00mm 4.00mm 5.00mm 6.00mm 7.00mm 8.00mm


9.00mm 10.00mm 11.00mm 12.00mm

Star:


5×5mm 6×6mm 7×7mm 8×8mm 10×10mm 12×12mm


Contact us to get a Free Quote for your Ideal Loose CZ Stone White Color AAAAA Top Quality Stones from China Wuzhou Supplier and Manufacturer



Free Quote: info@frgems.com



Website: www.frgems.com  
Blogger: http://blog.frgems.com 
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Loose Cubic Zirconia white Round AAAA Quality Stones



Loose Cubic Zirconia white Round AAAA Quality Stones:




--We Supply and Manufacture wide range of Loose Cubic Zirconia, Lab Created Gems,Simulated stones and other Synthetic Gemstones in All Shapes and Sizes.

--Top High Quality in Hand Cutting and Machine Cutting.

--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World.


Sizes Available: 0.8mm-100mm and As Per Request

Please feel free to contact us Via Email to get the Free Price list of Loose Cubic Zirconia,Loose CZ Stones white color Round AAAA Quality Stones from China Wuzhou Supplier and wholesaler

Free Quote: info@frgems.com
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Loose Cubic Zirconia white Round AAA Quality stones



Loose Cubic Zirconia white Round AAA Quality stones:



--We Supply and Manufacture wide range of Loose Cubic Zirconia stones, Lab Created Gems,Simulated stones and other Synthetic Gemstones in All Shapes and Sizes.

--Top High Quality in Hand Cutting and Machine Cutting.

--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World.


Cubic Zirconia White Color Round AAA Quality:
Sizes Available: 0.8mm-100mm and As Per Request

Please feel free to contact us Via Email to get the prices of  Loose Cubic Zirconia stones white round aaa quality stones /Loose CZ White aaa stones from China Wholesaler and supplier. Thank you for your attention.

Free Quote:
info@frgems.com

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Cubic Zirconia white AA Quality Stones Wholesale



Cubic Zirconia White Color Round AA Quality:



White CZ(Cubic Zirconia) Stone is an excellent simulation for Real diamond stones. 

Cubic Zirconia has all the sparkle of a natural diamond at a fraction of the cost.
White cubic zirconia stones are graded for quality.These resemble genuine diamonds.Usually,they are graded as A, AAA, and AAAAA with cubic zirconia AAAAA being the highest grade on the CZ Market.
CZ AAA stones are the most popular among jewelry stores because they still offer great quality at affordable prices.
At Fu Rong Gems, you can Buy White CZ Loose Stones With Quality Grades A to Top Grade Quality AAAAA atWholesale Direct Factory prices from the Real China Professional Manufacturer and Supplier.  

Our CZ white AAAAA quality is the highest quality, the Cutting is perfect, the beautiful shine the beautiful facets,considered to be just as brilliant as a real diamond.
Q: How Loose Cubic Zirconia Quality is Determined?
There are four main factors that help determine the quality or grade of cubic zirconia.  
These are carat (or carat weight), claritycolor, and cut. CZ stones are imitation diamonds or simulants and are measured in carat weight. Loose cubic zirconia stones are always heavier than real diamonds. This is because the materials that are used to create the stones are denser.
Though loose cubic zirconia stones are generally colorless, many shades of colors can be added using trace elements during the manufacturing process. These colors might include lavender, peridot, pink, violet, champagne, aqua, citrine yellow, and others. Typically, transparent cubic zirconia will be the more valuable, high-end diamond imitation. Colored CZ stones are valued according to the rarity, evenness, and tone of their colors. 
Clarity, or clearness, of loose cubic zirconia is also a quality factor. The manufacturing process can sometimes cloud a stone, making visible imperfections. Just as with genuine diamonds, the clearer the stone is, the greater the value.
The cut is also very important in determining quality for loose cubic zirconia stones. Just as with diamonds, the cut reveals the stone's beauty through every facet. The facets must be even and precise to create just the right appearance. Also as with diamonds, the skill of the stone cutter makes all the difference. Stone cutters do much more than cut. They analyze the stone carefully to determine how much of the stone should be cut off to give proper clarity. Then, they take many steps to perfect their cut without taking away from the stone. 
Though the Brilliant cut is the standard, there are other popular cuts such as the Trillion, Princess, and Radiant cuts. There are also a variety of shapes to give each stone its own unique personality.
The Following are the Normal/Standard sizes for each cuts/shapes of CZ AA Stones For your Reference: 
Round:
1.0mm               1.20mm            1.25mm            1.30mm            1.35mm           1.40mm
1.45mm             1.50mm            1.65mm            1.75mm            1.85mm           2.00mm
2.15mm             2.25mm            2.35mm            2.45mm            2.50mm           2.65mm
2.75mm             2.85mm            3.00mm            3.25mm            3.50mm           3.75mm
4.00mm             4.25mm            4.50mm            4.75mm            5.00mm           5.25mm
5.50mm             5.75mm            6.00mm            6.50mm            7.00mm           7.50mm
8.00mm             8.50mm            9.00mm            9.50mm           10.00mm         11.00mm
12.00mm          13.00mm          14.00mm          15.00mm           16.00mm         17.00mm
18.00mm         19.00mm           20.00mm

Square:2×2mm          2.5×2.5mm          3×3mm             3.5×3.5mm        4×4mm          5×5mm
6×6mm          7×7mm               8×8mm              9×9mm           10×10mm      11×11mm
12×12mm     13×13mm            14×14mm         15×15mm          16×16mm      17×17mm
18×18mm     19×19mm            20×20mm

Oval & Pear:3×5mm           4×6mm                5×7mm              6×8mm              7×9mm           8×10mm
9×11mm        10×12mm           10×14mm          12×16mm          13×18mm          15×20mm

Marquise:
2×4mm           2.5×5mm             3×6mm             3.5×7mm           4×8mm            5×10mm
6×12mm         7×14mm              8×20mm           7×24mm            6×18mm           7×12mm
 

Baguette & Octagon:
2×4mm          2.5×5mm              3×5mm             3×6mm               4×6mm            4×8mm
5×7mm          6×8mm                  7×9mm           8×10mm            9×11mm           8×20mm
5×20mm       10×12mm             10×14mm         10×16mm          12×16mm         13×18mm                                       
15×20mm     16×22mm             12×20mm         15×22mm          16×20mm           9×16mm

Heart & Triangle & Trillion:
3×3mm         4×4mm                 5×5mm             6×6mm               7×7mm           8×8mm
9×9mm       10×10mm            11×11mm          12×12mm           13×13mm        14×14mm
15×15mm     16×16mm           17×17mm          18×18mm          19×19mm         20×20mm

Beads & Balls:
3.00mm           4.00mm               5.00mm              6.00mm            7.00mm            8.00mm       
9.00mm           10.00mm             11.00mm           12.00mm

Star:
5×5mm             6×6mm                7×7mm             8×8mm             10×10mm          12×12mm

Contact us to get a Free Quote for your Ideal Loose CZ Stone White Color AA Quality Stones from China Wuzhou Supplier and Manufacturer.
Contact us at:
Website: http://www.frgems.com/  
blog: blog.frgems.com
www.frgems.wordpress.com 
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Cubic Zirconia White A Quality stones china Wholesale and Supplier



Cubic Zirconia White Color A Quality stones:



--We Supply and Manufacture wide range of Cubic Zirconia, Lab Created,Simulated stones and other Synthetic Gemstones in All Shapes and Sizes.

--Top High Quality in Hand Cutting and Machine Cutting.

--Low, Low Factory Prices from China Wuzhou--the Biggest Synthetic Gemstones Manufacturing Base in the World.


Cubic Zirconia White Color A Quality:
Sizes Available: 0.8mm-100mm and As Per Request

The Following are the normal sizes for each cuts/shapes For your Reference:

Round:
1.0mm 1.20mm 1.25mm 1.30mm 1.35mm 1.40mm
1.45mm 1.50mm 1.65mm 1.75mm 1.85mm 2.00mm
2.15mm 2.25mm 2.35mm 2.45mm 2.50mm 2.65mm
2.75mm 2.85mm 3.00mm 3.25mm 3.50mm 3.75mm
4.00mm 4.25mm 4.50mm 4.75mm 5.00mm 5.25mm
5.50mm 5.75mm 6.00mm 6.50mm 7.00mm 7.50mm
8.00mm 8.50mm 9.00mm 9.50mm 10.00mm 11.00mm
12.00mm 13.00mm 14.00mm 15.00mm 16.00mm 17.00mm
18.00mm 19.00mm 20.00mm
Square:2×2mm 2.5×2.5mm 3×3mm 3.5×3.5mm 4×4mm 5×5mm
6×6mm 7×7mm 8×8mm 9×9mm 10×10mm 11×11mm
12×12mm 13×13mm 14×14mm 15×15mm 16×16mm 17×17mm
18×18mm 19×19mm 20×20mm


Oval & Pear:
3×5mm 4×6mm 5×7mm 6×8mm 7×9mm 8×10mm
9×11mm 10×12mm 10×14mm 12×16mm 13×18mm 15×20mm
Marquise:


2×4mm 2.5×5mm 3×6mm 3.5×7mm 4×8mm 5×10mm
6×12mm 7×14mm 8×20mm 7×24mm 6×18mm 7×12mm

Baguette and Octagon:


2×4mm 2.5×5mm 3×5mm 3×6mm 4×6mm 4×8mm
5×7mm 6×8mm 7×9mm 8×10mm 9×11mm 8×20mm
5×20mm 10×12mm 10×14mm 10×16mm 12×16mm 13×18mm
15×20mm 16×22mm 12×20mm 15×22mm 16×20mm 9×16mm
Heart; Triangle ;Trillion:
3×3mm 4×4mm 5×5mm 6×6mm 7×7mm 8×8mm
9×9mm 10×10mm 11×11mm 12×12mm 13×13mm 14×14mm
15×15mm 16×16mm 17×17mm 18×18mm 19×19mm 20×20mm
Beads & Balls:

3.00mm 4.00mm 5.00mm 6.00mm 7.00mm 8.00mm
9.00mm 10.00mm 11.00mm 12.00mm
Star:

5×5mm 6×6mm 7×7mm 8×8mm 10×10mm 12×12mm

Please feel free to contact us Via Email to get the Free Price list. Thank you for your attention.

Free Quote:
info@frgems.com
Contact us to get a Free Quote for your specific sizes.
Website: http://www.frgems.com/ 

blog: blog.frgems.com
www.frgems.wordpress.com 
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About cubic zirconia



Cubic Zirconia:

Cubic zirconia (or CZ) is the cubic crystalline form of zirconium dioxide (ZrO2). The synthesized material is hard, optically flawless and usually colorless, but may be made in a variety of different colors. It should not be confused with zircon, which is a zirconium silicate (ZrSiO4).

Because of its low cost, durability, and close visual likeness to diamond, synthetic cubic zirconia has remained the most gemologically and economically important competitor for diamonds since 1976. It is sometimes marketed under the brand name "Diamonique". Its main competition as a synthetic gemstone is the more recently cultivated material, synthetic moissanite.



Technical aspects:

As its name would imply, cubic zirconia is crystallographically isometric and, as diamond is also isometric, this is an important attribute of a would-be diamond simulant. During synthesis zirconium oxide would otherwise form monoclinic crystals, its stable form under normal atmospheric conditions. The stabilizer is required for cubic crystal formation; it may be typically either yttrium or calcium oxide, the amount and stabilizer used depending on the many recipes of individual manufacturers. Therefore the physical and optical properties of synthesized CZ vary, all values being ranges.

It is a dense substance, with a specific gravity between 5.6–6.0 — at least 1.6 times more dense than diamond. Cubic zirconia is relatively hard, at about 8 on the Mohs scale— much harder than most natural gems.[1] Its refractive index is high at 2.15–2.18 (B-G interval, compared to 2.42 for diamonds) and its luster is subadamantine. Its dispersion is very high at 0.058–0.066, exceeding that of diamond (0.044). Cubic zirconia has no cleavage and exhibits a conchoidal fracture. Because of its high hardness, it is generally considered brittle.

Under shortwave UV cubic zirconia typically luminesces a yellow, greenish yellow or "beige". Under longwave UV the effect is greatly diminished, with a whitish glow sometimes being seen. Colored stones may show a strong, complex rare earth absorption spectrum.

History:

Discovered in 1892, the yellowish monoclinic mineral baddeleyite is a natural form of zirconium oxide. It has little economic importance because of its rarity.

The extremely high melting point of zirconia (2750°C) posed a hurdle to controlled single-crystal growth, as no existing crucible could hold it in its molten state. However, stabilization of zirconium oxide had been realized early on, with the synthetic product stabilized zirconia introduced in 1930. Although cubic, it was in the form of a polycrystalline ceramic: it was made use of as a refractory material, highly resistant to chemical and thermal (up to 2540°C) attack.

Seven years later, German mineralogists M. V. Stackelberg and K. Chudoba discovered naturally occurring cubic zirconia in the form of microscopic grains included in metamict zircon. Thought to be a byproduct of the metamictization process, the two scientists did not think the mineral important enough to formally name. The discovery was confirmed through x-ray diffraction, proving the existence of a natural counterpart to the synthetic product.

As with the majority of grown diamond look-alikes, the conceptual birth of single-crystal cubic zirconia began in the minds of scientists seeking a new and versatile material for use in lasers and other optical applications. Its evolution would eclipse earlier synthetics, such as synthetic strontium titanate, synthetic rutile, YAG (Yttrium Aluminium Garnet) and GGG (Gadolinium Gallium Garnet).

Some of the earliest research into controlled single-crystal growth of cubic zirconia occurred in 1960s France, much work being done by Y. Roulin and R. Collongues. This technique involved molten zirconia being contained within a thin shell of still-solid zirconia, with crystal growth from the melt: The process was named cold crucible, an allusion to the system of water cooling used. Though promising, these pursuits yielded only small crystals.

Later, Soviet scientists under V. V. Osiko at the Lebedev Physical Institute in Moscow perfected the technique, which was then named skull crucible (an allusion either to the shape of the water-cooled container or to the occasional form of crystals grown). They named the jewel Fianit, but the name was not used outside of the USSR. Their breakthrough was published in 1973, and commercial production began in 1976. By 1980 annual global production had reached 50 million carats (10 tonnes).

Synthesis:

The Soviet-perfected skull crucible is still used today, with little variation. Water-filled copper pipes provide a cup-shaped scaffold in which the zirconia feed powder is packed, the whole contraption being wrapped with radio frequency induction coils running perpendicular to the copper pipes. A stabilizer is mixed with the feed powder, being typically calcium oxide.

The RF induction coils function in a manner similar to the primary winding in a transformer. The zirconia acts as the "secondary winding" of a transformer which in effect is "shorted" out and thus gets hot. This heating method requires the introduction of small pieces of zirconium metal. The metal is placed near the outside of the charge and is melted by the RF coils and heats the surrounding zirconia powder from the outside inwards. The cooling water-filled pipes embracing the outer surface maintain a thin "skin" (1-2 mm) of unmelted feed, creating a self-contained apparatus. After several hours the heat is reduced in a controlled and gradual manner, resulting in the formation of flawless columnar crystals. Prolonged annealing at 1400°C is then carried out to remove any strain. The annealed crystals, which are typically 5 cm long by 2.5 cm wide (although they may be grown much larger), are then cut into gemstones.

The addition of certain metal oxide dopants into the feed powder results in a variety of vibrant colors.

The addition of certain metal oxide dopants into the feed powder results in a variety of vibrant colors. For example:

Innovations:

In recent years manufacturers have sought ways of distinguishing their product by supposedly "improving" cubic zirconia. Coating finished CZs in a film of diamond-like carbon (DLC) or Amorphous Diamond is one such innovation, a process using chemical vapor deposition. The resulting material is purportedly harder, more lustrous and more like diamond overall: The coating is thought to quench the excess fire of CZ, while improving its refractive index, thus bringing it more in line with diamond. Additionally, because of the high percentage of diamond bonds in the amorphous diamond coating, the finished simulant will show a positive diamond signature under Raman spectroscopy.

Another technique first applied to quartz and topaz has also been adapted to cubic zirconia: Vacuum-sputtering an extremely thin layer of metal oxide (typically gold) onto the finished stones creates an iridescent effect. This material is marketed as "mystic" by many dealers. Unlike DLC, the surreal effect is not permanent, as abrasion easily removes the oxide layer.

Cubic zirconia versus diamond:

There are a few key features of cubic zirconia which distinguish it from diamond, some observable only under the microscope or loupe, for example:[citation needed]


Dispersion: With a dispersive power greater than diamond (0.060 vs. 0.044) the more prismatic fire of cubic zirconia can be seen by even an untrained eye.[citation needed]

Hardness: Cubic zirconia has a rating of approximately 8 on Mohs hardness scale vs. a rating of 10 for diamonds.[2]

Specific gravity: Cubic zirconia crystals are heavyweights in comparison to diamonds; a cubic zirconia will weigh about 1.7 times more than a diamond of equivalent size.

Flaws: Contemporary production of cubic zirconia is virtually flawless,[citation needed] whereas most diamonds have some sort of defect, be it a feather, included crystal, or perhaps a remnant of an original crystal face (e.g. trigons).

Refractive index: Cubic zirconia has a refractive index of 2.176, compared to a diamond's 2.417.

Cut: Some cubic zirconias use different facet shapes than are typically used for diamonds. This difference would be visible under close inspection with a loupe.

Color (or more precisely, the lack thereof): Only the rarest of diamonds are truly colorless, most having a tinge of yellow or brown to some extent. By comparison, cubic zirconia can be made in most cases entirely colorless: equivalent to a perfect "D" on diamond's color grading scale.


Thermal conductivity: Cubic zirconias are thermal insulators while diamonds are among the most efficient thermal conductors, exceeding copper. This makes telling the difference between diamond and cubic zirconia quite easy for those with the right instruments.
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About Us



FU RONG GEMS's Profile:
-Your Loose Cubic Zirconia gemstones and Natural Gemstones, Synthetic Gemstones Supplier and Partner From the Biggest Synthetic gemstones manufacturing base in the World—Wuzhou City, Guangxi province of China.

Our History:

Our Factory (Fu Rong Gems Factory) was founded on 1996! We are a Professional Supplier and the Real Factory which have more than 16 years experience in manufacturing Loose Cubic Zirconia (cz diamond) and lab created gems, hand-cut or machine-cuting Cubic zirconia, Natural Gemstones, Synthetic Opal, Nano Gemstones, Synthetic Corundum gemstones with quality from AB to A quality, AAA quality and Top AAAAA quality for jewelry making and distribution.

Our Advantage:

Our factory is located in the Biggest Synthetic gemstones manufacturing base in the World—Wuzhou City, Guangxi province of China, Which also honored as the-Capital of Synthetic gemstones in the world’’. We have many gemstone processing machines and skillfully workers;

The capacity of our production is more than 30,000,000pcs monthly.

We can provide client with gemstones in any color,specification with very high quality.

It is our aim and guarantees to finish product order strictly and Punctually according to customer request.


Product Catalogue: Click below to choose your desired product categories

  • Cubic Zirconia
  • Synthetic Opal
  • Glass Stone
  • Natural Gemstones
  • Nano Gemstones
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  • Color Colors of Gemstones
  • Moissanite Diamond
  • Synthetic Spinel
  • Raw Material

Natural Gemstones:

Natural Amethyst, Natural Garnet, Natural Peridot, Natural Citrine, Natural Aquamarine, White topaz, Swiss Blue Topaz, Sky blue Topaz, Natural prehite and natural Diopside gemstones. 

Synthetic Gemstone coming in all shapes and sizes, including round, baguette, square, cushion, heart, triangle, trillion, marquise, oval, pear, trapezoid, star, flower, axe, saddle, ball, drop, and with more than 40 kinds of normal shapes and nearly 130 kinds of gemstones.


Our Approach:
We (FRgems.com) strive to offer the customer the best and lowest prices with the highest quality according customers’ request. What we are seeking is our client's 100% satisfaction and long term & good partnership. We want to offer our clients a total purchasing solution where they can spend less time dealing with purchasing and more time developing new businesses.

You are warmly welcomed to join us and cooperate with us on the basis of mutual benefit and create a bright future together!

Our Advantage:

  • Factory direct pricing:
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Contact information:



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About Cubic Zirconia,Cubic Zirconia,Cubic Zirconia versus diamond



Cubic Zirconia:

Cubic zirconia (or CZ) is the cubic crystalline form of zirconium dioxide (ZrO2). The synthesized material is hard, optically flawless and usually colorless, but may be made in a variety of different colors. It should not be confused with zircon, which is a zirconium silicate (ZrSiO4).

Because of its low cost, durability, and close visual likeness to diamond, synthetic cubic zirconia has remained the most gemologically and economically important competitor for diamonds since 1976. It is sometimes marketed under the brand name "Diamonique". Its main competition as a synthetic gemstone is the more recently cultivated material, synthetic moissanite.
Technical aspects:As its name would imply, cubic zirconia is crystallographically isometric and, as diamond is also isometric, this is an important attribute of a would-be diamond simulant. During synthesis zirconium oxide would otherwise form monoclinic crystals, its stable form under normal atmospheric conditions. The stabilizer is required for cubic crystal formation; it may be typically either yttrium or calcium oxide, the amount and stabilizer used depending on the many recipes of individual manufacturers. Therefore the physical and optical properties of synthesized CZ vary, all values being ranges.

It is a dense substance, with a specific gravity between 5.6–6.0 — at least 1.6 times more dense than diamond. Cubic zirconia is relatively hard, at about 8 on the Mohs scale— much harder than most natural gems.[1] Its refractive index is high at 2.15–2.18 (B-G interval, compared to 2.42 for diamonds) and its luster is subadamantine. Its dispersion is very high at 0.058–0.066, exceeding that of diamond (0.044). Cubic zirconia has no cleavage and exhibits a conchoidal fracture. Because of its high hardness, it is generally considered brittle.

Under shortwave UV cubic zirconia typically luminesces a yellow, greenish yellow or "beige". Under longwave UV the effect is greatly diminished, with a whitish glow sometimes being seen. Colored stones may show a strong, complex rare earth absorption spectrum.
History:Discovered in 1892, the yellowish monoclinic mineral baddeleyite is a natural form of zirconium oxide. It has little economic importance because of its rarity.

The extremely high melting point of zirconia (2750°C) posed a hurdle to controlled single-crystal growth, as no existing crucible could hold it in its molten state. However, stabilization of zirconium oxide had been realized early on, with the synthetic product stabilized zirconia introduced in 1930. Although cubic, it was in the form of a polycrystalline ceramic: it was made use of as a refractory material, highly resistant to chemical and thermal (up to 2540°C) attack.

Seven years later, German mineralogists M. V. Stackelberg and K. Chudoba discovered naturally occurring cubic zirconia in the form of microscopic grains included in metamict zircon. Thought to be a byproduct of the metamictization process, the two scientists did not think the mineral important enough to formally name. The discovery was confirmed through x-ray diffraction, proving the existence of a natural counterpart to the synthetic product.

As with the majority of grown diamond look-alikes, the conceptual birth of single-crystal cubic zirconia stone began in the minds of scientists seeking a new and versatile material for use in lasers and other optical applications. Its evolution would eclipse earlier synthetics, such as synthetic strontium titanate, synthetic rutile, YAG (Yttrium Aluminium Garnet) and GGG (Gadolinium Gallium Garnet).

Some of the earliest research into controlled single-crystal growth of cubic zirconia occurred in 1960s France, much work being done by Y. Roulin and R. Collongues. This technique involved molten zirconia being contained within a thin shell of still-solid zirconia, with crystal growth from the melt: The process was named cold crucible, an allusion to the system of water cooling used. Though promising, these pursuits yielded only small crystals.

Later, Soviet scientists under V. V. Osiko at the Lebedev Physical Institute in Moscow perfected the technique, which was then named skull crucible (an allusion either to the shape of the water-cooled container or to the occasional form of crystals grown). They named the jewel Fianit, but the name was not used outside of the USSR. Their breakthrough was published in 1973, and commercial production began in 1976. By 1980 annual global production had reached 50 million carats (10 tonnes).
Synthesis:

The Soviet-perfected skull crucible is still used today, with little variation. Water-filled copper pipes provide a cup-shaped scaffold in which the zirconia feed powder is packed, the whole contraption being wrapped with radio frequency induction coils running perpendicular to the copper pipes. A stabilizer is mixed with the feed powder, being typically calcium oxide.

The RF induction coils function in a manner similar to the primary winding in a transformer. The zirconia acts as the "secondary winding" of a transformer which in effect is "shorted" out and thus gets hot. This heating method requires the introduction of small pieces of zirconium metal. The metal is placed near the outside of the charge and is melted by the RF coils and heats the surrounding zirconia powder from the outside inwards. The cooling water-filled pipes embracing the outer surface maintain a thin "skin" (1-2 mm) of unmelted feed, creating a self-contained apparatus. After several hours the heat is reduced in a controlled and gradual manner, resulting in the formation of flawless columnar crystals. Prolonged annealing at 1400°C is then carried out to remove any strain. The annealed crystals, which are typically 5 cm long by 2.5 cm wide (although they may be grown much larger), are then cut into gemstones.

The addition of certain metal oxide dopants into the feed powder results in a variety of vibrant colors.

The addition of certain metal oxide dopants into the feed powder results in a variety of vibrant colors. For example:

Innovations:

In recent years manufacturers have sought ways of distinguishing their product by supposedly "improving" cubic zirconia. Coating finished CZs in a film of diamond-like carbon (DLC) or Amorphous Diamond is one such innovation, a process using chemical vapor deposition. The resulting material is purportedly harder, more lustrous and more like diamond overall: The coating is thought to quench the excess fire of CZ, while improving its refractive index, thus bringing it more in line with diamond. Additionally, because of the high percentage of diamond bonds in the amorphous diamond coating, the finished simulant will show a positive diamond signature under Raman spectroscopy.

Another technique first applied to quartz and topaz has also been adapted to cubic zirconia: Vacuum-sputtering an extremely thin layer of metal oxide (typically gold) onto the finished stones creates an iridescent effect. This material is marketed as "mystic" by many dealers. Unlike DLC, the surreal effect is not permanent, as abrasion easily removes the oxide layer.
Cubic zirconia versus diamond:There are a few key features of cubic zirconia which distinguish it from diamond, some observable only under the microscope or loupe, for example:[citation needed]

Dispersion: With a dispersive power greater than diamond (0.060 vs. 0.044) the more prismatic fire of cubic zirconia can be seen by even an untrained eye.[citation needed]

Hardness: Cubic zirconia has a rating of approximately 8 on Mohs hardness scale vs. a rating of 10 for diamonds.[2]

Specific gravity: Cubic zirconia crystals are heavyweights in comparison to diamonds; a cubic zirconia will weigh about 1.7 times more than a diamond of equivalent size.

Flaws: Contemporary production of cubic zirconia is virtually flawless,[citation needed] whereas most diamonds have some sort of defect, be it a feather, included crystal, or perhaps a remnant of an original crystal face (e.g. trigons).

Refractive index: Cubic zirconia has a refractive index of 2.176, compared to a diamond's 2.417.
Cut: Some cubic zirconias use different facet shapes than are typically used for diamonds. This difference would be visible under close inspection with a loupe.

Color (or more precisely, the lack thereof): Only the rarest of diamonds are truly colorless, most having a tinge of yellow or brown to some extent. By comparison, cubic zirconia can be made in most cases entirely colorless: equivalent to a perfect "D" on diamond's color grading scale.
Thermal conductivity: Cubic zirconias are thermal insulators while diamonds are among the most efficient thermal conductors, exceeding copper. This makes telling the difference between diamond and cubic zirconia quite easy for those with the right instruments.
[Read More...]


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