0.51ct E IF Cushion Natural Diamond
GD • E/IF • GIA 6555370030
Certificate GIA 6555370030
Diamond specifications and retailer prices
About this 0.51ct natural cushion diamond
This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555370030. Listed at 5 retailers as of October 30, 2026, with prices from $611 to $781, a $170 spread on the same certified stone. Blue Nile lists it at $781. 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 →5 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
- 0.51ct CushionE/IFfrom $794across 13 retailersAs of October 31, 2026
- 0.51ct CushionE/IFfrom $545across 5 retailersAs of October 30, 2026
- 0.51ct CushionE/IFfrom $1,572across 2 retailersAs of October 31, 2026
- 0.51ct CushionE/IFfrom $667across 2 retailersAs of October 30, 2026
- 0.51ct CushionE/IFfrom $1,111As of October 31, 2026
- 0.51ct CushionE/IFfrom $2,724As of November 2, 2026
- 0.51ct CushionE/IFfrom $787As of November 1, 2026
- 0.5ct CushionE/IFfrom $733across 11 retailersAs of November 1, 2026