1.51ct K SI1 Cushion Natural Diamond
GD • K/SI1 • GIA 6445506666
Certificate GIA 6445506666
Diamond specifications and retailer prices
About this 1.51ct natural cushion diamond
This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6445506666. Listed at 15 retailers as of November 4, 2026, with prices from $2,270 to $4,798, a $2,528 spread on the same certified stone. MOH London lists it at $4,798. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.
The 4Cs
Specifications
Caratlytics Score
How it works →15 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 CushionK/SI1from $2,355across 17 retailersAs of November 6, 2026
- 1.51ct CushionK/SI1from $2,405across 16 retailersAs of November 4, 2026
- 1.51ct CushionK/SI1from $2,048across 16 retailersAs of November 6, 2026
- 1.51ct CushionK/SI1from $4,711across 15 retailersAs of November 6, 2026
- 1.51ct CushionK/SI1from $4,711across 15 retailersAs of November 6, 2026
- 1.51ct CushionK/SI1from $4,584across 14 retailersAs of November 6, 2026
- 1.51ct CushionK/SI1from $2,707across 14 retailersAs of November 5, 2026
- 1.51ct CushionK/SI1from $2,275across 12 retailersAs of November 5, 2026