18.03ct M VS1 Round Natural Diamond
EX • M/VS1 • GIA 5231883468
Certificate GIA 5231883468
Diamond specifications and retailer prices
About this 18.03ct natural round diamond
This 18.03ct natural round sits in the over five carat band, graded M colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 5231883468. Listed at 10 retailers as of October 31, 2026, with prices from £226,662 to £350,898, a £124,236 spread on the same certified stone. Aurelinne lists it at £350,898. 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 →10 retailers
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