0.51ct D SI1 Marquise Lab Grown Diamond
EX • D/SI1 • IGI LG817665899
Shape and cutting style on the report: Marquise brilliant
Certificate IGI LG817665899
Diamond specifications and retailer prices
About this 0.51ct lab-grown marquise diamond
This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817665899 or 817665899. Listed at 8 retailers as of October 25, 2026, with prices from $124 to $862, a $738 spread on the same certified stone. MOH London lists it at $862. 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 →8 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.
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