4.00ct G SI2 Round Lab Grown Diamond
EX • G/SI2 • IGI LG819602247
Shape and cutting style on the report: Round brilliant
Certificate IGI LG819602247
Diamond specifications and retailer prices
About this 4ct lab-grown round diamond
This 4ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG819602247 or 819602247. Listed at 16 retailers as of November 5, 2026, with prices from £335 to £1,724, a £1,389 spread on the same certified stone. Brilliant Earth lists it at £1,724. 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
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