6.15ct D IF Marquise Natural Diamond
EX • D/IF • GIA 5231025421
Certificate GIA 5231025421
Diamond specifications and retailer prices
About this 6.15ct natural marquise diamond
This 6.15ct natural marquise sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231025421. Listed at 4 retailers as of November 1, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.
The 4Cs
Specifications
Caratlytics Score
How it works →4 retailers
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