0.30ct F SI1 Cushion Natural Diamond

About this 0.3ct natural cushion diamond

This 0.3ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3545103512. Listed at 16 retailers as of November 1, 2026, with prices from £197 to £621, a £424 spread on the same certified stone. MOH London lists it at £621. 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.