8.57ct I VS1 Marquise Lab Grown Diamond
I/VS1 • IGI LG644481798
Certificate IGI LG644481798
Diamond specifications and retailer prices
About this 8.57ct lab-grown marquise diamond
This 8.57ct lab-grown marquise sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG644481798 or 644481798. Listed at 3 retailers as of October 30, 2026, with prices from $6,240 to $7,490, a $1,250 spread on the same certified stone. Kay Jewelers lists it at $7,490. 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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