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GIA

GIA GRADING

Established in 1931, GIA (the Gemological Institute of America) is the world’s largest and most respected non-profit institute of gemmological research and learning.

All the loose diamonds offered by Diamonds of Choice are graded by GIA, whose mission is to ensure the public trust in gems and jewellery by upholding the highest standards of integrity, academics, science, and professionalism through education, research, laboratory services, and instrument development.

The GIA Diamond Grading Report (which is supplied with every stone from Diamonds of Choice) is considered to be the world's premier credential of diamond quality. Many retailers provide diamond certification, however no report is as unbiased and complete as a GIA diamond grading report. Diamonds of all shapes and sizes are sent to the Institute from every corner of the globe for diamond grading and analysis.

GIA screens every gemstone to identify synthetics, simulants and known treatments. Expert gemmologists examine each diamond under controlled lighting and viewing conditions, in order to provide the most rigorous assessments of a diamond’s quality.

Some famous diamonds have been graded by GIA including the Hope Diamond (45.52 carats), the Steinmetz Pink (59.60 carats), the Taylor-Burton (69.42 carats), the Allnatt (101.29 carats), the De Beers Millennium Star (203.04 carats), the Centenary (273.85 carats), and the Incomparable (407.48 carats).

GIA is the creator of the revolutionary 4Cs of diamond value (carat, color, clarity, and cut) and is the birthplace of the International Diamond Grading System. Today, GIA’s D-Z color-grading scale, Flawless–I3 clarity-grading scale and Excellent-to-Poor cut-grading scale are recognized by virtually every professional jeweler and savvy diamond buyer in the world.

Find out more at www.gia.edu

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THE 4 C'S
Clarity, Colour, Cut & Carat
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