5.10ct F SI2 Cushion Lab Grown Diamond
VG • F/SI2 • IGI LG651421154
Certificate IGI LG651421154
Diamond specifications and retailer prices
About this 5.1ct lab-grown cushion diamond
This 5.1ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG651421154 or 651421154. Listed at 3 retailers as of October 30, 2026, with prices from €2,551 to €4,458, a €1,907 spread on the same certified stone. Kay Jewelers lists it at €4,458. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.
The 4Cs
Specifications
Caratlytics Score
How it works →3 retailers
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