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Loose Nanosital Color London Blue Dark #48 Octagon Shape flat bottom irregular Checkerboard top 10x7mm gemstones wholesale from china supplier and manufacturer. Pictures What is Nano Gemstones ? A: Nano Crystal gemstone - is the glass-ceramic material with nano sized (10⁻⁹m) crystals of Spinel in an aluminosilicate glass matrix, which is not special glass and it is not synthetic crystal or mineral - it is their hybrid. This composite material has unique physical and optical properties: Color (homogeneous and even), Density (3-3.3g/cm³), Luster (RI=1.61-1.64); Melting temperature (more than 1650 C°) and high thermal shock resistance make this material ideally compatible with the wax-casting technology. Nano Crystal gemstone are a new type of created gemstone made especially for jewellery. The colour is homogeneous, meaning that if you bought 100 emerald green nano crystal stones, the colour would be exactly the same in every stone. The material has been created with precious metal clay in mind, so any size gem should be kiln safe and blow torch safe with out colour change or damage. #Nano Crystal gemstone# does not contain any health hazardous contaminants (lead, arsenum, cadmium) Hardness: 7 on Mohs scale Refractive Index: 1.65-1.7 Specific Gravity: 3.5-4 Dispersion: 0.015 Melting Point: 1700 degrees Celcius It does not change color when heated. Can be used in wax casting. The Main characteristics of Nanosital/Nano Crystal stones: 1.Nano Stone's specific gravity index is very close to that of the most valuable gemstones such as topaz, sapphire, ruby and aquamarine. 2.Nano Stone and the optical properties of the most popular color gemstones are almost similar. Nano Stone's main feature is its lack of an unnaturally strong lustre, which is typical of #cubic zirconia#, wherein the play of colors remains attractive. 3.Nano Stone's hardness (7 on Mohs scale) guarantees jewellery durability without the loss of its...

Lab Grown Alexandrine Color change Oval Shape faceted 5x7mm loose Gemstones wholesale from china Suppliers and Manufacturer. PICTURES   Which gemstones can be grown in a lab? Diamond, fancy colored diamond, sapphire, ruby, spinel, emerald, alexandrite, moissanite, and opal. Every year, technology advances and more opportunities are available. Even in just the last five years, There’re huge advancements in the methods used to grow colored gemstones. As you can see the pictures from this page, these colors are lab grown, and more and more colors will be created for the jewelry designs. How these Lab grown gemstones are made? Most of them are created with the methods byPulled Czochralski , TheCzochralski process, uses radio waves to melt the aluminum oxide. A rod tipped with a seed crystal is inserted into the mixture and slowly rotated and pulled out, creating a column of Colored stones. Video             Color Chart of Lab Grown Gemstones Popular Colors of Lab Grown Gemstones: OUR ADVANTAGE Factory & Manufacturer since 2008, strong productive ability. Ensure the large quantity supply of product. We are one of the largest manufacturers & Suppliers of Loose gemstone in China#Wuzhou City#. Strict quality inspection: 15 production processes ; 9 inspection processes ; more than 8 experienced QC check ; Every gemstone has its quality assurance. GUARANTEE 30 days without using and damage of the stones; Bulk product quality is not same as samples; Gemstones are not same as the order list;

Moissanite D Color Series:

Color: D, Colorless (Supernova),

Size: 9x11mm
Clarity:VVS
Cut: Faceted Brilliant (Heart and Arrow)

MM size & Ct weight Chart: issanite-stones-mm-sizes-carat-weight-chart.html" target="_blank" rel="noopener">http://m.frgems.com/loose-moissanite-stones-mm-sizes-carat-weight-chart.html

Moissanite D Color Series:

Color: D, Colorless (Supernova),

Size: 9x11mm
Clarity:VVS
Cut: Faceted Brilliant (Heart and Arrow)

MM size & Ct weight Chart: issanite-stones-mm-sizes-carat-weight-chart.html" target="_blank" rel="noopener">http://m.frgems.com/loose-moissanite-stones-mm-sizes-carat-weight-chart.html

Loose Cubic Zirconia White Round Shape Rose Cut cut foiled back 6mm 3.5mm stones CZ01 wholesale from China Manufacturer and Suppliers Pictures Something About Rose Cut:The rose cut (also called the rosette cut) for diamonds was invented in the 17th century and its used continued until the 18th century. The rose cut has a flat base and triangular facets (usually 24).An old diamond or gemstone cutting style with a flat base and usually two horizontal rows of facets rising to a point. Sometimes called a Dutch rose cut, it may have as many as 24 facets. An early style of cutting that is thought to have originated in India and to have been brought to Europe by the Venetians.A style of diamond cutting or other transparent gemstone that produces a gem with a flat base and triangular facets that rise to form a dome.This style of cut has been in use since the 16th century. These are, like the step cuts, an older cut of diamond. Developed prior to the use of electric lighting, rose cuts fell out of favor in the early 20th century, due to their lack of brilliance. What is Cubic Zirconia? A: Cubic Zirconia (or CZ) is zirconium oxide (ZrO2 ), is widely synthesized for use as a diamond simulant and it is a lab made created stone with a specific gravity of between 5.6-6.00 and at about 8.5 hardness on Mohs scale, which is harder than most natural gems. Its refractive index is high at 2.15 - 2.18 (B-G interval) and its luster is very good. Its dispersion is very high at 0.058 - 0.066, exceeding that of diamond (0.044). Cubic Zirconia Gemstones is the best stimulant for the Real diamond, it's beautiful and brilliant for the Jewelry designs. At FU RONG GEMS, you can...

Loose nano crystal Peridot Color #152 Square shape Princess Cut 2x2mm gemstones wholesale from china supplier and manufacturer. Pictures What is Nano Gemstones ? A: Nano Crystal gemstone - is the glass-ceramic material with nano sized (10⁻⁹m) crystals of Spinel in an aluminosilicate glass matrix, which is not special glass and it is not synthetic crystal or mineral - it is their hybrid. This composite material has unique physical and optical properties: Color (homogeneous and even), Density (3-3.3g/cm³), Luster (RI=1.61-1.64); Melting temperature (more than 1650 C°) and high thermal shock resistance make this material ideally compatible with the wax-casting technology. Nano Crystal gemstone are a new type of created gemstone made especially for jewellery. The colour is homogeneous, meaning that if you bought 100 emerald green nano crystal stones, the colour would be exactly the same in every stone. The material has been created with precious metal clay in mind, so any size gem should be kiln safe and blow torch safe with out colour change or damage. #Nano Crystal gemstone# does not contain any health hazardous contaminants (lead, arsenum, cadmium) Hardness: 7 on Mohs scale Refractive Index: 1.65-1.7 Specific Gravity: 3.5-4 Dispersion: 0.015 Melting Point: 1700 degrees Celcius It does not change color when heated. Can be used in wax casting. The Main characteristics of Nanosital/Nano Crystal stones: 1.Nano Stone's specific gravity index is very close to that of the most valuable gemstones such as topaz, sapphire, ruby and aquamarine. 2.Nano Stone and the optical properties of the most popular color gemstones are almost similar. Nano Stone's main feature is its lack of an unnaturally strong lustre, which is typical of #cubic zirconia#, wherein the play of colors remains attractive. 3.Nano Stone's hardness (7 on Mohs scale) guarantees jewellery durability without the loss of its original look. The Nanosital...

Loose Nano crystal morganite Pink Peach Color #180 Round shape faceted cut 4x3mm Gemstones wholesale from china supplier and manufacturer. Pictures What is Morganite Color Gemstones? Morganite is the name of an orange to pink gemstone that has significantly grown in popularity since 2010. It is a variety of beryl, a beryllium aluminum silicate mineral with a high durability. Morganite is distinguished from other types of beryl by its orange-pink color. After Blue sapphire, morganite is the second-most-popular colored gem used as a center stone in engagement rings today. Synthetic Morganite and Imitated Morganite Synthetic Morganite (also known as lab-grown morganite or lab-created morganite) is a man-made material with the same chemical composition, crystal structure, and physical properties as natural morganite. The important difference is that natural morganite was formed in the Earth and is a rare material. On the other hand, synthetic morganite is a man-made material that can be produced upon demand in unlimited quantities. Imitation Morganite is a man-made material that simply looks like morganite. It is not rare and generally sells for a price that is much lower than natural morganite or synthetic morganite. Many people gladly purchase imitation gems because they look great and cost a fraction of what would be paid for a natural gem. (Nano Crystal stones have a imitated morganite color stones. ) Morganite's recent surge in popularity should be a caution flag for people who are buying morganite jewelry. This is the perfect time for synthetic morganite and imitation morganite to flow into the gem and jewelry market. If you are going to spend major money on an item of morganite jewelry, it is important to know if the gem you are buying is natural or man-made. Why? Natural morganite sells for a much higher price than man-made alternatives. You don't...

Moissanite D Color Series:

Color: D, Colorless (Supernova),

Size: 9x11mm
Clarity:VVS
Cut: Faceted Brilliant (Heart and Arrow)

MM size & Ct weight Chart: issanite-stones-mm-sizes-carat-weight-chart.html" target="_blank" rel="noopener">http://m.frgems.com/loose-moissanite-stones-mm-sizes-carat-weight-chart.html

Lab Created Grown Hydrothermal Emerald Zambia Green Color Square Shape princess cut 2x2mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. PICTURES There're 2 popular Lab grown Emerald Green Color Gemstones,One is Zambia Green, another is Colombia Green color. How can you tell a Zambian emerald? Emerald appearance is sometimes associated with its mine location. Colombian emeralds are said to have a warmer and more intense pure green color. Zambian emeralds are said to have a cooler, more bluish green color. Generally, Zambian emeralds are deep green with slight bluish overtone. ABOUT LAB HYDROTHERMAL EMERALD GREEN STONES Today you can find all sorts of Lab Created Gemstones in the market like lab created ruby, lab created sapphire, lab created Alexandrites. Out of all these Lab Created Gemstones, the Lab Created Emerald is considered to be the best discovery made by man. Not everyone can afford to wear a jewellery with real emerald stones as a top quality real emeralds can cost upto $40,000 to $100,000 a carat. But most of the people can afford to wear jewelry with synthetic emeralds in it as you can easily find a top quality lab created emerald at FU RONG GEMS for below $100. The lab created emeralds that we supply here are made by the hydrothermal process that is why some people also call it hydrothermal emerald. This process uses a water solution at high temperatures and it takes many months to create a top grade synthetic emerald rough. We then use specialist engineers to cut these stones from the roughs to get the best grade lab created emeralds. The synthetic emeralds you find here will have the same chemical composition as the real emeralds. There're other Emerald Green color stones options: Nano Crystal Emerald Green Colors Cubic Zirconia Emerald...

Moissanite D Color Series:

Color: D, Colorless (Supernova),

Size: 9x11mm
Clarity:VVS
Cut: Faceted Brilliant (Heart and Arrow)

MM size & Ct weight Chart: issanite-stones-mm-sizes-carat-weight-chart.html" target="_blank" rel="noopener">http://m.frgems.com/loose-moissanite-stones-mm-sizes-carat-weight-chart.html