0.66 Carat Marquise Brilliant Diamond

Carat Weight: 0.66 ct.

Diamonds are sold by the carat (shown as ct.), which is actually a unit of weight, though most think of a carat in terms of size. The word "carat" comes from the "carob" seed, the original unit of measure for diamond traders. Today, a carat is equal to exactly 0.2 grams (about the weight of a paper clip). Carat weight is unrelated to the similar sounding karat, which refers to gold's purity.

Reference only. True diamond size may vary based on monitor size.

Clarity Grade: SI1

Inclusions are noticeable to a skilled grader using 10x magnification. SI1 is the lowest grade with flaws often invisible to the naked eye. SI2 inclusions are usually visible to the naked eye, although they will require close inspection.

Color Grade: E

The GIA uses D-to-Z color scale to determine the presence or absence of color in colorless diamonds. Diamonds graded for D, E, and F colors are colorless diamonds. D color diamonds are the highest in the color grading and display unmatched brilliance. E color diamonds contain minute traces of color and display extraordinary brilliance and sparkle. E color diamonds have minute traces of color can be detected only by a trained gemologist. High-quality colorless diamonds were once considered a rarity is now readily available thanks to lab-grown diamond technology.

Colorless
D E F

Near Colorless
G H I J

Faint
K L M

Fortunately, we don’t carry diamonds of this quality.

Very Light
N R

Light
S Z