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Welcome to Hydray, buy HPHT/CVD laboratory grown diamonds
2021-11-18 · TYPE 2a Comment on main report: Color stability test applied: Type 2a Comment on appendix: The GRS color stability test was applied. Indication of orange and/or yellow component fading was observed. A padparadscha color is visible in both the discharged and charged state (GRS-type "CST 2a").
Gem Encyclopedia is a virtual journey through the science and lore of Gemstones from across the globe. Each Gem page features Gemological Information, a .
News and intelligence from IGI Worldwide. On November 9 a pair of three-strand diamond bracelets, formerly owned by Marie Antoinette, smashed expectations at Christie's Magnificent Gems Auction in Geneva, when they sold for 7,459,000 Swiss Francs (more than $8 million), several times more than their pre-sale estimate.
Welcome to IGITL About us: (IGITL) International gemological Institute and Testing laboratory is an ISO (9001-2000) Certified Laboratory.We are providing Services for Gemstone Identification, Gemstone Treatment Identification, Gemstone Origin Identification, Diamond Grading and Diamond Grading for Jewellery Items.
2021-11-18 · TYPE 2a Comment on main report: Color stability test applied: Type 2a Comment on appendix: The GRS color stability test was applied. Indication of orange and/or yellow component fading was observed. A padparadscha color is visible in both the .
2021-11-18 · TYPE 2a Comment on main report: Color stability test applied: Type 2a Comment on appendix: The GRS color stability test was applied. Indication of orange and/or yellow component fading was observed. A padparadscha color is visible in both the discharged and charged state (GRS-type "CST 2a").
Fashion Jewelry. 5.07 IGI Certified CVD Type 2A Square Fancy Cut Diamond. 5.02ct IGI Certified CVD Type 2A Square Fancy Cut Diamond. 4.14ct IGI Certified CVD Type 2 Emerald Cut Diamond. 3.02ct IGI Certified CVD Type 2 Oval Brilliant Cut Diamond. 3.01ct IGI Certified CVD Type 2 Pear Brilliant Cut Diamond. View More Details.
International Gemological Institute. IGI is the largest international laboratory for diamond and colored gemstone certification. It is the only international certification lab which is controlled by single central governing body that sticks to one internationally acknowledged system for diamond and colored gemstone grading.
Report no.: 476177882 Gemstone: danburite Size: 14.39 x 8.59 x 4.85 mm Clarity: VVS Treatment: not mentioned in the report, this type of gemstone is not commonly treated Weight: 3.79 ct Colour: colourless Cut: oval mixed cut Origin: Tanzania Certificate included Item number: 00000149022 N.B. Country of origin is an opinion offered by the seller of this item. This .
GIA Certification. In order to deal with the lack of transparency in diamonds and pricing, an institution known as the Gemological Institute of America (GIA) was founded as a nonprofit organization. Over time, GIA has become the global .
2021-7-5 · Type 2a is the rare natural diamond containing little nitrogen and is almost free from all forms of impurities. This type is purest form of diamond and commonly colorless. ... Carat, diamond shapes and certification. Gemstone museum is intended to researches, exhibits & collects amazing gemstones & diamonds ... Gemstone books educate you to ...
Report no.: 476177882 Gemstone: danburite Size: 14.39 x 8.59 x 4.85 mm Clarity: VVS Treatment: not mentioned in the report, this type of gemstone is not commonly treated Weight: 3.79 ct Colour: colourless Cut: oval mixed cut Origin: Tanzania Certificate included Item number: 00000149022 N.B. Country of origin is an opinion offered by the seller of this item. This .
For over 25 years it has offered the fine jewelry trade and consumers accurate, reliable gemstone identification and professional certification to validate their gemstone purchases. IGI has been an innovator in the diamond grading industry known for establishing revolutionary techniques for grading diamonds that weigh less than one carat.
US $91.20-$100.80 / Piece. Alibaba offers 9,677 igi diamond products. About 58% of these are loose diamonds, 15% are loose gemstone. A wide variety of igi diamond options are available to you, such as very good, excellent. You can also choose from synthetic (lab created).
2021-2-26 · Type IIa (Extremely rare) No measurable nitrogen or boron impurities. Usually colorless, but can also be gray, light brown, light yellow or light pink. Most chemically pure of all diamonds. Only 1-2% of all diamonds are this type. Cullinan, .
2020-11-29 · The 12.75-carat, Type IIa, F-color, VVS2-clarity, round brilliant-cut diamond. Gemologists of the IGI, who described the diamond in glowing terms, said, the diamond which can be assigned triple-excellent marks for cut-quality and finish, was of exceptional chemical purity and transparency, with no evidence of any post-growth treatments.
Gem Encyclopedia is a virtual journey through the science and lore of Gemstones from across the globe. Each Gem page features Gemological Information, a Buyer's guide, photos, videos & research.