1.51ct E SI2 Cushion Natural Diamond
EX • E/SI2 • GIA 6545580701
Certificate GIA 6545580701
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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545580701. Listed at 14 retailers as of October 28, 2026, with prices from $4,454 to $9,589, a $5,134 spread on the same certified stone. Queensmith lists it at $9,589. 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 →14 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 CushionE/SI2from $6,370across 17 retailersAs of October 28, 2026
- 1.51ct CushionE/SI2from $3,853across 15 retailersAs of October 29, 2026
- 1.51ct CushionE/SI2from $3,853across 15 retailersAs of October 29, 2026
- 1.51ct CushionE/SI2from $3,162across 14 retailersAs of October 29, 2026
- 1.51ct CushionE/SI2from $3,339across 12 retailersAs of October 28, 2026
- 1.51ct CushionE/SI2from $3,116across 12 retailersAs of October 28, 2026
- 1.51ct CushionE/SI2from $5,481across 12 retailersAs of October 29, 2026
- 1.51ct CushionE/SI2from $3,622across 12 retailersAs of October 28, 2026