1.51ct I SI1 Cushion Natural Diamond
GD • I/SI1 • GIA 6545925688
Certificate GIA 6545925688
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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6545925688. Listed at 20 retailers as of October 29, 2026, with prices from $5,239 to $11,109, a $5,870 spread on the same certified stone. MOH London lists it at $11,109. 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 →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
- 1.51ct CushionI/SI1from $5,460across 23 retailersAs of October 30, 2026
- 1.51ct CushionI/SI1from $9,275across 22 retailersAs of October 30, 2026
- 1.51ct CushionI/SI1from $9,275across 21 retailersAs of October 30, 2026
- 1.51ct CushionI/SI1from $4,881across 21 retailersAs of October 30, 2026
- 1.51ct CushionI/SI1from $7,254across 21 retailersAs of October 30, 2026
- 1.51ct CushionI/SI1from $5,668across 20 retailersAs of October 30, 2026
- 1.51ct CushionI/SI1from $3,719across 20 retailersAs of October 30, 2026
- 1.51ct CushionI/SI1from $4,846across 19 retailersAs of October 30, 2026