Four Grainer
Point
Clarity
A stone's relative position on a flawless to imperfect scale. Clarity characteristics are classified as inclusions (internal) or blemishes (external).
Four grainer: See Grainer.
Full-cut brilliant: A brilliant-cut diamond or colored stone with the usual total of 58 facets. See Ideal-cut.
G Top ...
In contrast, Asian markets used grains of rice to measure their goods and you may still hear some jewelers refer to a single carat diamond as a "four grainer" since one carat was once considered to be equal to the weight of four grains of rice.
After the adoption of the 200mg carat, the decimal standard came into use. In the trade, a one carat gemstone, specifically the diamond, is still referred to as a 'four grainer', and the 0.75 carat diamond as the 'three grainer'.
 See also: Jewel, Size, Make, Polished, Polish
  
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