1.73ct D SI1 Radiant Lab Grown Diamond
GD • D/SI1 • IGI LG508155765
Shape and cutting style on the report: Cut cornered rectangular modified brilliant
Certificate IGI LG508155765
Diamond specifications and retailer prices
About this 1.73ct lab-grown radiant diamond
This 1.73ct lab-grown radiant 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 LG508155765 or 508155765. Listed at 13 retailers as of October 31, 2026, with a 165% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 →13 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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