1.28ct F SI1 Round Natural Diamond
EX • F/SI1 • GIA 1173082151
Certificate GIA 1173082151
Diamond specifications and retailer prices
About this 1.28ct natural round diamond
This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1173082151. Listed at 2 retailers as of October 28, 2026. 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 →2 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
- 1.28ct RoundF/SI1from $4,085across 7 retailersAs of October 31, 2026
- 1.28ct RoundF/SI1from $4,313across 6 retailersAs of November 2, 2026
- 1.28ct RoundF/SI1from $9,830As of October 31, 2026
- 1.29ct RoundF/SI1from $4,323across 15 retailersAs of October 29, 2026
- 1.29ct RoundF/SI1from $3,718across 14 retailersAs of October 31, 2026
- 1.27ct RoundF/SI1from $3,345across 14 retailersAs of October 31, 2026
- 1.29ct RoundF/SI1from $3,087across 14 retailersAs of October 31, 2026
- 1.27ct RoundF/SI1from $6,051across 13 retailersAs of November 1, 2026