1.28ct D SI1 Marquise Lab Grown Diamond
VG • D/SI1 • IGI LG843658870
Shape and cutting style on the report: Marquise brilliant
Certificate IGI LG843658870
Diamond specifications and retailer prices
About this 1.28ct lab-grown marquise diamond
This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG843658870 or 843658870. Listed at 7 retailers as of November 1, 2026, with prices from $248 to $969, a $721 spread on the same certified stone. MOH London lists it at $969. 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 →7 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.
Similar diamonds
- 1.24ct MarquiseD/SI1from $198across 3 retailersAs of October 30, 2026
- 1.19ct MarquiseD/SI1from $253across 17 retailersAs of October 30, 2026
- 1.12ct MarquiseD/SI1from $180across 3 retailersAs of November 1, 2026
- 1.1ct MarquiseD/SI1from $143across 14 retailersAs of October 30, 2026
- 1.1ct MarquiseD/SI1from $180across 3 retailersAs of November 1, 2026
- 1.1ct MarquiseD/SI1from $1,281As of October 27, 2026
- 1.09ct MarquiseD/SI1from $168across 18 retailersAs of October 30, 2026
- 1.47ct MarquiseD/SI1from $1,830As of October 26, 2026