GIA DIAMONDS
A TRADITION OF SCIENCE AND EDUCATION
Established in 1931, the Gemological Institute of America (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.
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.
CLARITY
The absence of inclusions and blemishes makes a diamond rare and affects value.
COLOR
Diamonds in the D-to-Z color range are valued by how closely they approach colorlessness – the less color, the higher their value.
CARAT WEIGHT
Diamonds and gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the weight of a paperclip.
Explore our Diamond Collection
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DIAMOND JEWELLERY
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BESPOKE DESIGNS
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Engagement Rings
Discover our exquisite collection of handcrafted diamond engagement rings, designed and created...
