1.50ct I SI1 Cushion Natural Diamond
EX • I/SI1 • GIA 1553442255
Certificate GIA 1553442255
Diamond specifications and retailer prices
About this 1.5ct natural cushion diamond
This 1.5ct 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553442255. Listed at 21 retailers as of November 1, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 →21 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
- 1.5ct CushionI/SI1from $7,947across 28 retailersAs of October 31, 2026
- 1.5ct CushionI/SI1from $8,200across 23 retailersAs of October 31, 2026
- 1.5ct CushionI/SI1from $10,484across 22 retailersAs of October 31, 2026
- 1.5ct CushionI/SI1from $4,649across 22 retailersAs of November 1, 2026
- 1.5ct CushionI/SI1from $3,290across 21 retailersAs of November 1, 2026
- 1.5ct CushionI/SI1from $4,130across 21 retailersAs of November 1, 2026
- 1.5ct CushionI/SI1from $4,756across 21 retailersAs of November 1, 2026
- 1.5ct CushionI/SI1from $3,737across 21 retailersAs of November 1, 2026