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EDUCATION

CREATOR OF THE 4CS

In the 1940s, GIA established the “4Cs” and the International Diamond Grading System™ – to this day, the worldwide standard for evaluating diamond quality.

Cut

The sparkle and brilliance of a diamond depends more on its cut than anything else.

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Clarity

The absence of inclusions and blemishes makes a diamond rare and affects value.

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COLOR

Diamonds in the D-to-Z color range are valued by how closely they approach colorlessness – the less color, the higher their value.

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CARAT WEIGHT

Diamonds and gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the

weight of a paperclip.

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