1.00ct D SI1 Round Natural Diamond
EX • D/SI1 • GIA 2558368590
Certificate GIA 2558368590
Diamond specifications and retailer prices
About this 1ct natural round diamond
This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558368590. Listed at 20 retailers as of November 4, 2026, with a 121% 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 →20 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
- 1ct RoundD/SI1from £2,155across 26 retailersAs of November 4, 2026
- 1ct RoundD/SI1from £1,769across 23 retailersAs of November 5, 2026
- 1ct RoundD/SI1from £1,816across 23 retailersAs of November 5, 2026
- 1ct RoundD/SI1from £2,231across 23 retailersAs of November 5, 2026
- 1ct RoundD/SI1from £1,883across 22 retailersAs of November 4, 2026
- 1ct RoundD/SI1from £1,712across 21 retailersAs of November 4, 2026
- 1ct RoundD/SI1from £1,826across 21 retailersAs of October 31, 2026
- 1ct RoundD/SI1from £2,234across 21 retailersAs of November 5, 2026