0.40ct F SI1 Cushion Natural Diamond

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6545088091. Listed at 12 retailers as of November 2, 2026, with prices from $384 to $1,219, a $835 spread on the same certified stone. MOH London lists it at $1,219. 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.