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Through its library and subject experts, GIA acts as a resource of gem and jewelry information for the trade, the public and media outlets. [2] In 1953 the GIA developed its International Diamond Grading System and the "four Cs" (cut, clarity, color, and carat weight) as a standard to compare and evaluate the quality of diamonds. [2]
Richard T. Liddicoat, Jr. (March 2, 1918 – July 23, 2002) was an American gemologist. An educator in gemology, he contributed in the area of diamond quality grading and gem identification. Liddicoat was the Chairman of the Board of Governors at the Gemological Institute of America (GIA).
Gemological Institute of America (GIA) was the first laboratory in America to issue modern diamond reports, [32] and is held in high regard amongst gemologists for its consistent, conservative grading. Diamond High Council (HRD) Official certification laboratory of the Belgian diamond industry, located in Antwerp. [33]
Diamond certified FL (flawless) by the GIA Two diamonds of grade VS 1 and SI 2 respectively. The GIA diamond grading scale is divided into six categories and eleven grades. [2] The clarity categories and grades are: [3] Flawless category (FL) diamonds have no inclusions or blemishes visible under 10× magnification. [3]
Diamonds sold through this process are known as conflict diamonds or blood diamonds. [131] In response to public concerns that their diamond purchases were contributing to war and human rights abuses in central and western Africa, the United Nations, the diamond industry and diamond-trading nations introduced the Kimberley Process in 2002. [142]
Opening a poll, the first option was a "traditional roguelike" mixed with a "tile-based first-person dungeon crawler" akin to Stardew Valley, and the second was a spiritual successor to Minecraft. [7] By January 4, the poll's results were around 78% in favor of a "Minecraft 2", with nearly 250,000 votes for the game. [7] [9]
The Ocean Dream is a diamond, measuring 5.51 carats (1.102 g), and rated in color as Fancy Deep Blue-Green by the Gemological Institute of America. [1] The Ocean Dream is the first and one of the only natural diamonds known to the GIA to possess a blue-green hue (besides the Ocean Paradise Diamond owned by the Nahshonov Group, found in Brazil in 2012), making it one of the rarest diamonds in ...
The Hope Diamond is a 45.52 carats (9.104 g; 0.3211 oz) diamond that has been famed for its great size since the 18th century. Extracted in the 17th century from the Kollur Mine in Guntur, India, [1] [2] the Hope Diamond is a blue diamond. Its exceptional size has revealed new information about the formation of diamonds. [3]