0.43ct J SI1 Round Natural Diamond

About this 0.43ct natural round diamond

This 0.43ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6561322394. Listed at 17 retailers as of November 2, 2026, with prices from £156 to £996, a £840 spread on the same certified stone. NZ Jewellers lists it at £996. 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.