Cut
The GIA Cut Scale ranges from Excellent to poor.
Color
The GIA Color Scale extends from D (colorless) to Z (light yellow or brown).Although many people think of gem quality diamonds as colorless, truly colorless diamonds are actually very rare. Most diamonds used in jewelry are nearly colorless with tints of yellow or brown.
Clarity
The GIA Clarity Scale includes eleven clarity grades.
Carat Weight
One carat equals 200 milligrams in weight.
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