0.51ct J SI2 Radiant Natural Diamond

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6565436784. Listed at 10 retailers as of October 30, 2026, with prices from $385 to $1,601, a $1,216 spread on the same certified stone. NZ Jewellers lists it at $1,601. 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.