0.31ct F SI1 Cushion Natural Diamond

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552406161. Listed at 11 retailers as of October 28, 2026, with prices from $454 to $1,111, a $657 spread on the same certified stone. Queensmith lists it at $1,111. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.