15.35ct F SI1 Heart Lab Grown Diamond
ID • F/SI1 • IGI LG638499200
Shape and cutting style on the report: Heart brilliant
Certificate IGI LG638499200
Diamond specifications and retailer prices
About this 15.35ct lab-grown heart diamond
This 15.35ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG638499200 or 638499200. Listed at 16 retailers as of October 31, 2026, with a 369% 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 →16 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.