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This clarity scale mirrors the GIA grading scale, except nomenclature varies. The system names these clarity grades; Loupe Clean, Very, very small inclusions (VVS1 and VVS2), Very small inclusions (VS1 and VS2), Small inclusions (SI1 and SI2), Piqué (P1, P2, and P3; from a French word meaning "blemished").
Eye-cleanness can occur in the I1 (a stone that has a very extensive cloud may not be apparent to the eye - but still be graded I1), an large emerald cut diamond with a small solitary EYE-VISIBLE inclusion in the corner of it's table, may still be graded VS2. Eye-visibility should never be used as a defining criteria for clarity grade.
The Wittelsbach diamond, before being recut by Graff. The original Wittelsbach Diamond, also known as Der Blaue Wittelsbacher, [3] was a 35.56-carat (7.112 g) fancy, deep, greyish-blue diamond with VS2 clarity that had been part of both the Austrian and the Bavarian Crown jewels. [4] Its colour and clarity had been compared to the Hope Diamond ...
Most gem diamonds are traded on the wholesale market based on single values for each of the four Cs; for example knowing that a diamond is rated as 1.5 carats (300 mg), VS2 clarity, F color, excellent cut round brilliant, is enough to reasonably establish an expected price range.
The Aurora Green Diamond is a 5.03-carat (1.006 g) vivid green diamond with VS2 clarity. In May 2016, the Aurora Green became the largest vivid green diamond to ever sell at auction. [ 1 ] The record was previous held by a 2.54 carat Fancy Vivid Green VS1 diamond that was sold by Sotheby’s on November 17, 2009, for $1.22 million per carat ...
Impurities in natural diamonds are due to the presence of natural minerals and oxides. The clarity scale grades the diamond based on the color, size, location of impurity and quantity of clarity visible under 10x magnification. [63] Inclusions in diamond can be extracted by optical methods.