GIA 4Cs
Color
Clarity
Cut
Carat
FACT:
Don’t confuse carat with karat, as in “18K gold,” which refers to gold purity.

Carat

*Reference only. True diamond size may vary based on screen size.

Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip.

Because even a fraction of a carat can make a considerable difference in cost, precision is crucial. In the diamond industry, weight is measured to a thousandth of a carat and rounded to the nearest hundredth.  Diamond weights greater than one carat are expressed in carats and decimals. (For instance, a 1.08 ct. stone would be described as “one point oh eight carats,” or “one oh eight.”)

NOTE: Diamonds are shown proportional in size.