1.00ct D SI1 Cushion Natural Diamond

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6502463041. Listed at 14 retailers as of November 1, 2026, with prices from £2,234 to £4,374, a £2,141 spread on the same certified stone. MOH London lists it at £4,374. 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.