2.51ct I SI1 Radiant Natural Diamond
EX • I/SI1 • GIA 1518171703
Certificate GIA 1518171703
Diamond specifications and retailer prices
About this 2.51ct natural radiant diamond
This 2.51ct natural radiant sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518171703. Listed at 9 retailers as of October 31, 2026, with a 44% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.
The 4Cs
Specifications
Caratlytics Score
How it works →9 retailers
Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.
Similar diamonds
- 2.51ct RadiantI/SI1from $25,962across 13 retailersAs of October 30, 2026
- 2.51ct RadiantI/SI1from $25,598across 9 retailersAs of October 31, 2026
- 2.51ct RadiantI/SI1from $31,536As of October 31, 2026
- 2.51ct RadiantI/SI1from $25,115As of October 26, 2026
- 2.51ct RadiantI/SI1from $15,242As of October 27, 2026
- 2.5ct RadiantI/SI1from $33,167across 19 retailersAs of October 31, 2026
- 2.5ct RadiantI/SI1from $16,729across 7 retailersAs of October 29, 2026
- 2.5ct RadiantI/SI1from $32,539across 5 retailersAs of October 31, 2026