0.51ct I SI2 Marquise Lab Grown Diamond
VG • I/SI2 • IGI LG442067279
Shape and cutting style on the report: Marquise brilliant
Certificate IGI LG442067279
Diamond specifications and retailer prices
About this 0.51ct lab-grown marquise diamond
This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG442067279 or 442067279. Listed at 10 retailers as of October 29, 2026, with prices from £182 to £908, a £726 spread on the same certified stone. MOH London lists it at £908. 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 →10 retailers
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