1.50ct J SI1 Radiant Natural Diamond
EX • J/SI1 • GIA 6551029978
Certificate GIA 6551029978
Diamond specifications and retailer prices
About this 1.5ct natural radiant diamond
This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded J 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 6551029978. Listed at 22 retailers as of November 6, 2026, with a 119% 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 →22 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 RadiantJ/SI1from $6,435across 26 retailersAs of November 6, 2026
- 1.5ct RadiantJ/SI1from $4,230across 22 retailersAs of November 4, 2026
- 1.5ct RadiantJ/SI1from $5,449across 21 retailersAs of November 6, 2026
- 1.5ct RadiantJ/SI1from $5,718across 20 retailersAs of November 4, 2026
- 1.5ct RadiantJ/SI1from $7,694across 20 retailersAs of November 5, 2026
- 1.5ct RadiantJ/SI1from $5,611across 20 retailersAs of November 6, 2026
- 1.5ct RadiantJ/SI1from $5,911across 20 retailersAs of November 6, 2026
- 1.5ct RadiantJ/SI1from $5,172across 19 retailersAs of November 6, 2026