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GIA graded natural diamonds

The Gemological Institute of America (GIA) is a non-profit institute founded in 1931. It developed the 4Cs and the international diamond grading system, and its reports are widely used as a reference.

Most sparkleExcellent cut, polish and symmetryTop cut grades Best balanceEye-clean, near-colourless, well cutNear-colourless, well cut More size for the budgetLowest price per carat firstLowest price per carat first

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50,732 diamonds

Grid List

Ranked from 189 of the 50,732 matches: the best-priced at each size. Sort by price or carat to browse them all.

Three picks to start with

Chosen from the live results below by the rules behind the shortcuts above.

Most sparkle1.51 ct CushionExcellent polish and symmetry, no fluorescence$2,138

Best balance1.52 ct CushionI colour, SI1 clarity, excellent polish$2,412

More size for the budget1.50 ct Asscher20% under the typical price per carat of I-colour asscher diamonds of this size here$2,482

Best value The lowest price per carat among 4 or more diamonds here of the same shape, colour and size, at least 12% under their typical price.

360°Best value

1.51 ct CushionI colour · SI1 · GIA$2,138

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1.52 ct CushionI colour · SI1 · GIA$2,412

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0.58 ct RoundF colour · VVS1 · Excellent cut · GIA$1,241

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1.59 ct HeartI colour · SI1 · GIA$2,740

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360°Best value

1.50 ct AsscherI colour · SI1 · GIA$2,482

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0.57 ct RoundF colour · IF · Excellent cut · GIA$1,237

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0.56 ct RoundE colour · VVS1 · Excellent cut · GIA$1,237

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1.51 ct CushionI colour · VS2 · GIA$2,619

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0.65 ct RoundG colour · IF · Excellent cut · GIA$1,234

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0.55 ct RoundG colour · FL · Excellent cut · GIA$1,236

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1.50 ct CushionI colour · VS2 · GIA$2,642

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0.67 ct RoundD colour · VS1 · Excellent cut · GIA$1,235

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0.73 ct RoundH colour · VS1 · Excellent cut · GIA$1,232

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1.50 ct CushionI colour · SI1 · GIA$2,677

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1.17 ct CushionI colour · VS2 · GIA$1,288

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1.53 ct CushionI colour · SI1 · GIA$2,750

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360°Best value

0.59 ct RoundD colour · VVS1 · Excellent cut · GIA$1,239

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0.56 ct RoundD colour · VVS2 · Excellent cut · GIA$1,236

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0.53 ct RoundE colour · IF · Excellent cut · GIA$1,234

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1.51 ct CushionI colour · SI1 · GIA$2,769

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1.51 ct CushionI colour · SI1 · GIA$2,790

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0.52 ct RoundE colour · IF · Excellent cut · GIA$1,234

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0.80 ct RoundG colour · SI1 · Excellent cut · GIA$1,232

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0.80 ct RoundG colour · SI1 · Excellent cut · GIA$1,232

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About GIA diamonds

Every GIA report has a number, often also laser-inscribed on the diamond’s girdle, that you can check on GIA’s own Report Check service. Each GIA diamond page here links to it.

Every diamond below is a real natural stone from live inventory, with its own grading report and, where the supplier provides them, its own photograph and video. Prices are live and rechecked with the supplier before anything is confirmed.

Questions

What does a GIA report show?

The diamond’s carat weight, colour, clarity and, for round brilliants, cut grade, with its measurements, polish, symmetry and fluorescence. Every GIA report has a number, often also laser-inscribed on the diamond’s girdle, that you can check on GIA’s own Report Check service. Each GIA diamond page here links to it.

Are these diamonds natural?

Yes. Every centre diamond we offer is a natural, mined diamond graded by an independent laboratory, and the laboratory is named on its certificate.

Is the grading report included?

Yes. The grading report for your diamond comes with your order.