1.51ct E SI1 Round Natural Diamond
EX • E/SI1 • GIA 1555561780
Certificate GIA 1555561780
Diamond specifications and retailer prices
About this 1.51ct natural round diamond
This 1.51ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555561780. Listed at 7 retailers as of October 22, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 →7 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
- 1.51ct RoundE/SI1from $7,437across 25 retailersAs of October 29, 2026
- 1.51ct RoundE/SI1from $5,237across 24 retailersAs of October 22, 2026
- 1.51ct RoundE/SI1from $12,500across 22 retailersAs of October 25, 2026
- 1.51ct RoundE/SI1from $12,500across 22 retailersAs of October 25, 2026
- 1.51ct RoundE/SI1from $9,765across 20 retailersAs of October 27, 2026
- 1.51ct RoundE/SI1from $6,682across 19 retailersAs of October 29, 2026
- 1.51ct RoundE/SI1from $9,100across 19 retailersAs of October 25, 2026
- 1.51ct RoundE/SI1from $11,055across 18 retailersAs of October 25, 2026