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Round Brilliant, 2.50 Carat, J, SI1, Excellent

Certified by the independent laboratory GIA · Check the report at the institute

Ref. 729402available
US$17,250.00
STIG price · Insured shipping, free from a goods value of EUR 900 · plus import charges, payable on delivery · shipped within 1–6 weeks of payment
Partner goodsSold on behalf of a partner dealer (§ 9 GTC); your contracting party and seller is STIG. Storage location: with the partner dealer, location on request.
Shape
Round Brilliant
Carat
2.50
Colour
J
Clarity
SI1
Cut
Excellent
Polish
Excellent
Symmetry
Excellent
Fluorescence
Faint
Certificate · GIA
1567605991
Laboratory
Gemological Institute of America
Measurements
8.81 × 8.79 × 5.32 mm
Depth %
60.4 %
Table %
57 %
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Photograph of a diamond, round brilliant (example)
What a round brilliant looks like in real lifeOur own example photograph under coloured studio light – not the stone offered here. Colour and clarity of the stone on offer are stated in its certificate.

How this stone compares

Price per carat: 6,900 USD. Our offer has 3 more stones of the same class (Round brilliant, 2.50–2.59 ct, colour J, clarity SI1). Their prices range from 17,250 USD to 17,500 USD, with a median of 17,250 USD. Differences within a class are usually explained by cut, polish, symmetry, fluorescence and proportions.

What the grades mean

  • Colour J: Last near-colourless grade. A slight yellow tint is visible on close inspection, especially in larger stones.
  • Clarity SI1: Slightly included: inclusions noticeable under 10×; depending on stone and cut sometimes visible to the unaided eye.
  • Cut EX: Top GIA cut grade: proportions and finish return a great deal of light to the viewer.
  • Polish EX: No or hardly any polish marks under 10× magnification.
  • Symmetry EX: Shape and alignment of the facets deviate hardly at all.
  • Fluorescence FNT: Faint glow under UV light; usually not noticeable in daylight.

As of 06/11/2026. Comparison within our offer, not a market index. See comparable stones · Diamond prices at a glance