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Understanding the moissanite carat weight: The industry has traditionally measured a diamond's weight in carats (1 carat equaling 200 milligrams). Since moissanite gemstones are only slightly less heavy (lighter) than natural diamonds, the size of a natural diamond and moissanite don't differ. For instance: A 6.50 mm round brilliant natural diamond would have a carat weight of 1.0. A moissanite of the same dimension (6.50mm) would have a carat weight of 0.88. Simply put, the weight of the two stones may be slightly different, but the millimeter size has been cut to stay the same. In order to fit available settings, it's often easier for jewelers to order moissanite by millimeter. The specific gravity of moissanite is 3.21 grams per cubic centimeter, so a 6.50 mm round brilliant moissanite jewel is approximately 0.88 carats. And we usually make all the loose gemstones in mm size, so, please kindly refer to this CT weight MM Chart to fit your jewelry desgins. Diamond Carat weight MM Size Chart   Other Customized shapes and sizes are welcome. Please contact our Sales for help or get free quotation.   Moissanite Popular Shapes/Cuts: For more details about the Loose Moissanite Diamond Gemstones, please click this link to learn more. https://www.frgems.com/loose-moissanite-gemstone-suppliers And feel free to Contact us for help if you have questions/requirements.

Loose Gemstone Popular Shapes and Regular Sizes chart Attention: Green Color filled items: Irregular size The sizes listed are not all applied to all the stones, for some of stones (Different materials) are not able to make. Please wait for the Embedded PDF File loading, if couldn't see it, please kindly refresh this page. Thanks. Here Total 4 pages: Next page and Previous page. 👇👇👇   Other Customized shapes and sizes are welcome. Please contact our Sales for help or get free quotation.

Loose Cubic Zirconia Amethyst Color #CZ10 Round Shape 6mm diamond faceted cut stones Pictures   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 Buy White and 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. How Loose Cubic Zirconia Quality is Determined? A: There are four main factors that help determine the quality or grade of cubic zirconia. These are carat (or carat weight), clarity, color, 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....

There're 3 kinds of 'Synthetic Opal' stones: One is Polymer Impregnated Synthetic Opal: This is original collection. have 92 colors 2nd is Lab grown Opal : It Shows translucent color and bigger scale of fire pattern. 3nd is Created Opal: Polymer Impregnated Synthetic Opal is composed by 80% silica & 20% resin. It is available in 92 different colors, such as green opal, blue opal, white opal, pink opal, yellow opal, purple opal, black opal…etc. It is widely used in different product markets such as jewelry, watches, eyewear and other accessories. Lab-grown impregnated synthetic opal)is available in vast selection of designs. If you have new idea of application, please contact with FU RONG Sales Team and will propose the best solution for your projects. SYNTHETIC OPAL COLOR CHART   Lab Grown OPAL COLOR CHART -2024 Latest Lab grown Opals has the same composition as the original collection. But It has a more translucent colour for light colour opal, such as white opal, light blue opal, light green opal, light pink opal…etc. and It shows translucent color and bigger scale of fire pattern. It is available in 52 different colours.Lab Grown opal series is reminiscent of the beautiful natural opal. CREATED OPAL COLOR CHART -2024 Latest fires The Pictures of Real stones: Galaxy Collection (Mineral Type Created Opal) is composed by silica & very small portion of water. It is the only glass compatible opal among three collections. You may also call it “Galaxy Opal or Created Opal”. It is available in 14 opal colours, such as water opal, milky opal, black opal, blue opal, pink opal and fire opal. Due to the transparency of some colors, such as OP701, 702, 712 etc, the colors are slightly different in various shapes and sizes. Synthetic Opal Gemstones Color chart for sell: US$60...

CORUNDUM COLOR CHART 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 of 9 on the Mohs scale, making it one of the most durable commercial gemstones. It has no dominant cleavage and fractures in a conchoidal manner. A high density of ~4.0 g/cm3 (most silicate minerals are ~2.6 g/cm3) results in corundum occurring in secondary placer deposits and recoverable by panning methods, similar to how you would recover placer gold. Corundum comesin all colours of the rainbow but is most commonly found as opaque crystals with dull colours.Red corundumis called ruby, blue corundum is called sapphire, and all other colours are called fancy sapphires. Some varieties of corundum will fluoresce under short wave and long wave UV light if there is enough chromium in the crystal structure but little iron, which tends to quench any emitted energy. Physical Properties of Corundum: Mohs Hardness: 9 Specific Gravity: 3.90 to 4.05 Cleavage Quality:None Fracture: Uneven,Conchoidal Optical Properties of Corundum: Refractive Index: 1.758 to 1.780 Optical Character: Uniaxial/- Birefringence 0.007 to 0.010 Pleochroism Dichroism: blue - violet-blue and greenish-blue; green - yellowish-green; yellow - pale yellow; purple - violet; orange, yellowish-red - deep crimson. Dispersion:0.018 Corundum and Spinel colors-6mm Round stones: Corundum and Spinel colors Sample Box for sale:6mm Round stones : $25/pc Slide Show of the Corundum Color chart 6mm round stones:   Or you can Click this picture to view the Clear pictures of Corundum Color chart 6mm round stones in Google album:   3mm Round Faceted Corundum Gemstones All colors (Google Album) Link:https://photos.app.goo.gl/TzBLy3Zs81U4unoJ7 The Popular Colors of Corundum: Pink Sapphire: 1#, 2#, #3 Ruby Red: #5, #7 and #8 Blue Sapphire: #33...

SPINEL COLOR CHART What's Synthetic Spinel? 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 Spinelsof 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 thesynthetic Spinelsshown below contain enough cobalt to cause magnetic attraction. Blue Spinel gemstonesmanufactured 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 is the only gem material of any kind that we have found that shows magnetic attraction entirely as a result of cobalt....

Dear customers, In order to make it easier for your purchase of the gemstones, please check the pictures of the stones in the following CZ color charts. and let us know the exact colors & color # when you're sending the enquiry/email. Thanks for your cooperation. There're several versions of color chart for the cubic zirconia stones. The colors of stones looks different due to the different light/environment to take these pictures. If you're not sure the colors are the ones you're looking for, it's better to buy the color charts or samples to check the colors personally. or ask our Sales to send you more pictures of the stones to check. There're Regular colors and Premium colors for the Cubic Zirconia Stones: CZ Regular colors: (CZ01 -CZ28): White, Black, Pink, Rose Pink, Golden Yellow, Canary Yellow,Lavender,Amethyst, Champagne,Orange,Violet, Garnet Red, Olive Yellow, Peridot Premium Colors: (CZ29 -CZ52): Rhodorite/Smoky,Tanzanite, Emerald Green, Aqua and Swiss Blue, Apple Green,Light Pink, Coffee Brown,Blue Zirconia, Fancy Canary Yellow, Diamond Imitated Color. And there're 3 color shades for these colors,light, Medium and Dark. Usually, the Medium color Shade are the most poplar ones. If customer doesn't request for the color shades,we are always send the stones in medium color shades, Please Attention. Besides: If you do the wax casting for the stones, Please pay attention. All CZ Regular Colors are : Heat resistant, No problem for the casting. All CZ Premium Colors are : Non-Heat resistant, Please don't do the casting. To Do the casting, please choose to use Nano Gemstones or Counrudm & Spinel Gemstones. To choose the colors you're ordering, Please refer to this latest Color chart/Sample kits/case: Loose Cubic Zirconia Color Charts: Cubic Zirconia Sample Box (6mm round) for Sale: $25 For more pictures of the stones in this Box, please refer to...