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GIA 4Cs of Diamond
All content for 4cs of diamond are from gia.edu
One carat equals 200 milligrams in weight.
For diamonds under one carat, each carat is
divided into 100 points – similar to pennies in a
dollar. 0.75 ct. = 75 points, 1/2 ct. = 50 points.
Beauty and Its Beholder The 4Cs
provide a way to objectively compare and
evaluate diamonds, but numbers alone
can’t describe a diamond’s
mysterious and captivating
beauty – for that, you’ll have
to visit your local jeweler to
see one for yourself
The GIA Clarity Scale includes eleven
clarity grades ranging from Flawless to I3.
Because diamonds form under
tremendous heat and pressure, it
is extremely rare to find a diamond
that lacks any internal and external
characteristics. These characteristics
are a by-product of its formation and
help gemologists separate natural
diamonds from synthetics and simulants,
and identify individual stones.