0.51ct H IF Round Lab Grown Diamond
ID • H/IF • IGI LG639448988
Shape and cutting style on the report: Round brilliant
Certificate IGI LG639448988
Diamond specifications and retailer prices
About this 0.51ct lab-grown round diamond
This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639448988 or 639448988. Listed at 16 retailers as of November 1, 2026, with prices from £89 to £917, a £828 spread on the same certified stone. MOH London lists it at £917. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.
The 4Cs
Specifications
Caratlytics Score
How it works →16 retailers
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