1.50ct D SI1 Marquise Lab Grown Diamond
GD • D/SI1 • IGI LG821630371
Shape and cutting style on the report: Marquise brilliant
Certificate IGI LG821630371
Diamond specifications and retailer prices
About this 1.5ct lab-grown marquise diamond
This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG821630371 or 821630371. Listed at 16 retailers as of October 25, 2026, with prices from $359 to $2,724, a $2,365 spread on the same certified stone. Brilliant Earth lists it at $2,724. 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 →16 retailers
Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.
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