Established in 1931, GIA is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry. A large majority of the diamonds we work with are GIA certified and inscripted, meaning when purchasing the stone you will also receive a GIA certificate that verifies every detail of your stone.
THE FOUR C'S
In the 1940s, GIA established the “4Cs” and the International Diamond Grading System™ – to this day, the worldwide standard for evaluating diamond quality.
The sparkle and brilliance of a diamond depends more on its cut than anything else.
The absence of inclusions and blemishes makes a diamond rare and affects value.
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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