0.30ct H SI1 Cushion Natural Diamond
EX • H/SI1 • GIA 6551537251
Certificate GIA 6551537251
Diamond specifications and retailer prices
About this 0.3ct natural cushion diamond
This 0.3ct natural cushion sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551537251. Listed at 9 retailers as of October 29, 2026, with prices from $372 to $801, a $429 spread on the same certified stone. MOH London lists it at $801. 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 →9 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
- 0.3ct CushionH/SI1from $237across 11 retailersAs of October 31, 2026
- 0.3ct CushionH/SI1from $217across 11 retailersAs of October 31, 2026
- 0.3ct CushionH/SI1from $290across 8 retailersAs of October 31, 2026
- 0.3ct CushionH/SI1from $240across 7 retailersAs of October 30, 2026
- 0.3ct CushionH/SI1from $482As of October 31, 2026
- 0.31ct CushionH/SI1from $370across 11 retailersAs of November 1, 2026
- 0.31ct CushionH/SI1from $237across 11 retailersAs of October 31, 2026
- 0.31ct CushionH/SI1from $344across 9 retailersAs of November 1, 2026