12.26ct F SI1 Cushion Lab Grown Diamond
ID • F/SI1 • IGI LG625476935
Shape and cutting style on the report: Cushion brilliant
Certificate IGI LG625476935
Diamond specifications and retailer prices
About this 12.26ct lab-grown cushion diamond
This 12.26ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625476935 or 625476935. Listed at 13 retailers as of October 31, 2026, with prices from £1,946 to £8,445, a £6,499 spread on the same certified stone. Taylor and Hart lists it at £8,445. 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 →13 retailers
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