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Loose Spinel 113# Sapphire blue Octagon Shape Emerald cut 4x6mmgemstones wholesale at factory price from China Supplier and manufacturer. Pictures What's Synthetic Spinel? A: Although not as widely used today as synthetic Corundum, synthetic Spinel is still one of the most common man-made gem materials, particularly blue synthetic Spinel. It appears frequently in class rings and costume jewelry. Blue, green and other colors of synthetic Spinel are mostly manufactured using the inexpensive flame-fusion method by which the Spinel develops around an elongated boule. These flame-fusion Spinels can be distinguished from natural Spinels by a slightly elevated refractive index due to a chemical variation involving higher aluminum content. Blue Synthetic Spinels of the flame-fusion type are typically colored only by cobalt. No iron is added, and therefore they are diamagnetic, another property that distinguishes blue flame-fusion Spinels from blue natural Spinels. When viewed under the Chelsea filter and also under long wave UV light, the light blue and medium blue gems pictured below left and center show a pale pink reaction due to low cobalt content, while the dark blue gem on the right appears bright red due to much higher cobalt content. None of the synthetic Spinels shown below contain enough cobalt to cause magnetic attraction. Blue Spinel gemstones manufactured by the slower and more costly flux-grown method have a vivid blue color due to high cobalt content. They are generally small in size, faceted from small synthetic crystals that are shaped like natural octahedral Spinel crystals, as opposed to the large rounded boule shapes of flame-fusion Spinels. Because the major chemistry is the same as natural Spinel, the refractive index range is also the same. While the common flame-fusion synthetic blue Spinels are almost always diamagnetic, flux-grown blue Spinels are weakly magnetic due to their higher cobalt content. This...

Loose Cubic ZirconiaCZ Amethyst color Emerald cut 4x6mm gemstones wholesale from China Manufacturer and Suppliers Pictures Emerald cut - Usually rectangular, this loose gemstones cut demonstrates a classic elegance. Fully faceted for maximum brilliance, unlike the traditional step cut that are very transparent. 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 gemstone. 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 Buy CZ Amethyst Octagon ShapeEmerald cut stonesand Other Colored CZ #Loose Cubic Zirconia Stones# With Quality Grades A to Top Grade Quality AAAAA at Wholesale Direct Factory prices from the Real China Professional Manufacturer and Suppliers. The definition/difference of Our CZ stone quality grades: A Quality stone: The stones is less of sparkling & brilliance. (Use the poor rough to make, The height/thickness of some stones are not reach the standard height of a diamond cut stone. And the Girdle of stones is thin or thick, not in symmetrical. So, some of stones looks Cloudy. AA Quality stones: Use the Better rough to make, The sparkling & brilliance is better than A Quality, As the cutting & faceting is better. AAA Quality (Standard) stones: Use the better rough to make,With the standard proportion of diamond cutting & faceting, calibrated in sizes & height, with symmetrical Girdle in general,...

Loose Harden GlassAquamarineblue color Faceted Teardrop with drilled hole beads 9x5mm Wholesale from China Suppliers and manufacturers. Pictures   There're several cutting patterns for the teardrops/beads, check the following picture:   What is Harden Glass Gemstones ? A: Glass is an amorphous form of silica (with various percentages of additives) that has been used as a gemstone for millennia. Glass for gemstones is man-made, formed by fusing silica sand with various additives at temperatures of 1000+°C.Natural glasses include obsidian, which is is a rapidly quenched lava, and closer to pure silica glasses, such as libyan desert glass.A unique man-made glass, although not often used in gems for obious reasons, is trinitite, a mildly radioactive glass formed from the fusing of sand by the detonation of the first atomic bomb in 1945.Common glass has poor dispersion and refractive index, however it is very cheap to manufacture and is known in jewellery terms as paste - often backed with metal foils to increase brilliance. Hardened Gemstones is one of the best stimulant for the CZ Stones or Natural Color Gemstones , which the colors are beautiful, but are cheap for the Jewelry designs. Hardness: 5-5.5 on Mohs scaleRefractive Index: 1.45-1.54Specific Gravity: 2.2-2.6Dispersion: 0.005-0.007Melting Point: 600-700 degrees Celcius At Fu Rong Gems, you can Buy high quality of Loose Hardened Glass Gemstones at Wholesale Direct Factory prices from the Real China Professional Manufacturers and Suppliers. Glass gemstones comes in all the basic shapes like Round, Oval, Pear, Octagon, Square, Heart, Marquise and etc. We can supply glass stones in about 200 colors. Click the following Color Chart of Popular colors and Shapes & Size Chart to learn More. OUR ADVANTAGE Factory & Manufacturer since 2008, strong productive ability. Ensure the large quantity supply of product. We are one of the largest manufacturers &...

Loose Natural genuine Black sapphire marquise faceted 11.5x5.5mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. Picture Natural genuine Black sapphire marquise faceted 11.5x5.5mm stones What Is Black Sapphire? Black sapphire is a nearly opaque stone whose color is so dark that it appears to absorb all light that enters the gemstone. For example, see a black sapphire ring here. Sometimes, this stone also looks very dark blue or gray. Black sapphires come mainly from Australia and are mined in large quantities. This variety of sapphire is very cheap and is considered low grade. An Alternative to Onyx? Because of its color, black sapphire is often confused with Black onyx. Indeed, this stone can successfully act as an onyx substitute. Although both stones look very similar, onyx is actually softer, while sapphire is one of the hardest gemstones (9 out of 10 on the Mohs Scale of Hardness). Because of this similarity, you may consider getting a black sapphire for your ring or pendant if you want a stone that has the color of onyx but is much harder. Is Black Sapphire the Same as Black Star Sapphire? Black star sapphire has a similar sounding name but is actually a different stone. It is a variety of the so-called “star sapphires” – stones that due to their unique crystal structures reflect light in the shape of a star. Black star sapphire is mostly mined in Thailand, West Africa and India. Should You Buy Black Sapphire? When considering black sapphire, you should keep in mind that it is deemed a low-quality stone. The good thing about it is that it’s cheap.If you are looking for a black and opaque gemstone, this is not a bad choice because sapphire is extremely hard. Whether you will decide to give black...

Lab Created Hydrothermal Emerald Zambia Green Square Princess cut 4x4mm faceted gemstones Wholesale at factory direct price from China Suppliers and manufacturers. PICTURES   There're 2 popolar colors for the Lab Created /Hydrothermal Emerald Green 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...

Lab Created Hydrothermal Emerald Zambia Green Marquise shape 3x1.5mm faceted Gemsotnes Wholesale at factory direct price from China Suppliers and manufacturers. PICTURES There're 2 popolar colors for the Lab Created /Hydrothermal Emerald Green 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...

Loose Natural Semi precious Chrome Diopside Green Color Round faceted 4mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. Picture What's Semi precious Chrome Diopside Green Color stones? Gemstone quality diopside is found in two forms: black star diopside and chrome diopside (which includes chromium, giving it a rich green color). At 5.5–6.5 on the Mohs scale, chrome diopside is relatively soft to scratch. Due to the deep green color of the gem, they are sometimes referred to as Siberian emeralds, although they are on a mineralogical level completely unrelated, emerald being a precious stone and diopside being a semi-precious stone.[9] Chrome diopside is colored by chromium, the same element that gives emerald its rich green color. This beautiful intense green color and its high refraction give the gem great brilliance and life. Diopside is found in many areas around the world and in different colors, however, gem quality chrome diopside is mined in the mountains of Siberia, Russia near diamond bearing kimberlite pipes. In 1988, this “new” green gem from Russia started to be seen in the jewelry industry and is sometimes referred to as “Russian Emerald” in the trade. The resemblance of its color to tsavorite garnet, chrome tourmaline, and emerald made it a standout, and the more affordable price made it popular. We have a quite collection of loose Semi precious Chrome Diopside Green Color gemstones wholesale at factory price from China . POPULAR SHAPES AND SIZES: * Factory direct. * Strict quality control. * Large Stock. * Customized is welcome. *All Photos are 100% real shoot. Cutting provide: all kinds of Poupular shapes/cut and also can be made in custom shapes/cuts. Delivery date: 1-2 days for in stock, 7-10 days for custom orders. OUR ADVANTAGE Factory & Manufacturer since 2008, strong productive ability....

Loose Aquamarine blue Spinel 108# Heart Shape faceted 5x5mm gemstones wholesale at factory price from China Supplier and manufacturer. Pictures What's Synthetic Spinel? A: Although not as widely used today as synthetic Corundum, synthetic Spinel is still one of the most common man-made gem materials, particularly blue synthetic Spinel. It appears frequently in class rings and costume jewelry. Blue, green and other colors of synthetic Spinel are mostly manufactured using the inexpensive flame-fusion method by which the Spinel develops around an elongated boule. These flame-fusion Spinels can be distinguished from natural Spinels by a slightly elevated refractive index due to a chemical variation involving higher aluminum content. Blue Synthetic Spinels of the flame-fusion type are typically colored only by cobalt. No iron is added, and therefore they are diamagnetic, another property that distinguishes blue flame-fusion Spinels from blue natural Spinels. When viewed under the Chelsea filter and also under long wave UV light, the light blue and medium blue gems pictured below left and center show a pale pink reaction due to low cobalt content, while the dark blue gem on the right appears bright red due to much higher cobalt content. None of the synthetic Spinels shown below contain enough cobalt to cause magnetic attraction. Blue Spinel gemstones manufactured by the slower and more costly flux-grown method have a vivid blue color due to high cobalt content. They are generally small in size, faceted from small synthetic crystals that are shaped like natural octahedral Spinel crystals, as opposed to the large rounded boule shapes of flame-fusion Spinels. Because the major chemistry is the same as natural Spinel, the refractive index range is also the same. While the common flame-fusion synthetic blue Spinels are almost always diamagnetic, flux-grown blue Spinels are weakly magnetic due to their higher cobalt content. This...

Moissanite D Color Series:

758a1;">Color: D, Colorless (Supernova),

758a1;">Size: 9x11mm
758a1;">Clarity:VVS
758a1;">Cut: Faceted Brilliant (Heart and Arrow)

MM size & Ct weight Chart: http://m.frgems.com/loose-moissanite-stones-mm-sizes-carat-weight-chart.html

Loose Synthetic Lab Created Corundum Blue Sapphire 34# Color Pear Shape Faceted Cut 2x4mm Gemstones Wholesale from China Suppliers and manufacturers. --Also Called as Synthetic Blue Sapphire,Lab created Blue Sapphire.--We Supply and Manufacture Corundum Blue sapphire stones in All kind of popular Shapes and Sizes;--Color Shades: #33 Light shade, #34 Medium and # 35 dark blue. Pictures What's the Blue Sapphire Color Stone? Blue sapphire belongs to the mineral species corundum. It can be a pure blue but ranges from greenish blue to violetish blue. The name “sapphire” can also apply to any corundum that’s not red and doesn’t qualify as ruby, another corundum variety. Sapphire is the September birthstone and for the 5th and 45th anniversary gemstone gifts. For specific birthstone information, September birthstone, Sapphire comes in all colors except red! It may be colorless, a deep blue, green, golden yellow, pink, reddish-orang, and violet. The most valuable color of sapphire is referred to as "corn-flower blue;" black, grey, or green overtones to this vivid blue will reduce overall value. Blue sapphire is not as expensive as diamond, emerald, and ruby, with the exception of the rare variety called Padparadscha, an orange-pink stone, and some Pink stones. The most common Corundum colors are Blue Sapphire and Ruby color stones, but we can also supply White Sapphire, Orange Sapphire, Yellow Sapphire and Alexandrites in all shapes and sizes. We have quite a collection of Blue Sapphire Color Loose gemstones 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... Special Shape and styles are available. What is Corundum and What are its Basic Qualities? A: Corundum is an aluminum oxide that commonly forms hexagonal barrel-shaped prisms that taper at both ends or as thin tabular hexagonal plates. It has a hardness...