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The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat , was adopted in 1907 at the Fourth General Conference on Weights and Measures , [ 1 ] [ 2 ] and soon afterwards in many countries around the world.
The weight of a diamond is one of these variables that determines a diamond’s worth and is what the general public is most familiar with. The unit of measurement, called the carat, equals 200 ...
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]
The cushion-shaped flawless fancy vivid pink type IIa diamond was sold by Sotheby's Hong Kong on October 7, 2022, for $392 million Hong Kong dollars (US$49.9 million), setting a world record for the highest price per carat for a diamond sold at auction. [64] [65] [66] —
The Blue Moon of Josephine is a 12.03 carats (2.406 g) blue diamond, described as flawless by experts, that was discovered in South Africa in January 2014 and was sold at a Sotheby's auction in Geneva in November 2015 at a record-setting price of $48.4 million (43.2 million Swiss francs plus fees). [1] The diamond is the largest cushion-shaped ...
Known as “Bleu Royal,” the 17.6-carat blue diamond is among the rarest ever to be unearthed, according to Christie’s auction house. ‘Internally flawless’ blue diamond could fetch $50 ...