0.40ct K SI1 Cushion Natural Diamond
VG • K/SI1 • IGI 749531733
Shape and cutting style on the report: Square cushion modified brilliant
Certificate IGI 749531733
Diamond specifications and retailer prices
About this 0.4ct natural cushion diamond
This 0.4ct natural cushion sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 749531733. Listed at 6 retailers as of November 4, 2026, with prices from $207 to $688, a $481 spread on the same certified stone. MOH London lists it at $688. 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 →6 retailers
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