0.31ct J SI1 Cushion Natural Diamond

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 749531644. Listed at 6 retailers as of October 30, 2026, with prices from $191 to $627, a $436 spread on the same certified stone. MOH London lists it at $627. 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.