1.51ct K SI1 Round Natural Diamond
EX • K/SI1 • GIA 5496366542
Certificate GIA 5496366542
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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5496366542. Listed at 16 retailers as of November 4, 2026, with a 114% 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 →16 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 RoundK/SI1from $2,051across 20 retailersAs of November 6, 2026
- 1.51ct RoundK/SI1from $2,148across 19 retailersAs of November 6, 2026
- 1.51ct RoundK/SI1from $3,277across 17 retailersAs of November 6, 2026
- 1.51ct RoundK/SI1from $4,117across 16 retailersAs of November 4, 2026
- 1.51ct RoundK/SI1from $2,278across 16 retailersAs of November 6, 2026
- 1.51ct RoundK/SI1from $2,301across 16 retailersAs of November 6, 2026
- 1.51ct RoundK/SI1from $2,111across 15 retailersAs of November 6, 2026
- 1.51ct RoundK/SI1from $2,970across 15 retailersAs of November 6, 2026