0.42ct F SI2 Round Lab Grown Diamond

About this 0.42ct lab-grown round diamond

This 0.42ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407901862 or 407901862. Listed at 9 retailers as of October 26, 2026, with prices from $218 to $1,086, a $868 spread on the same certified stone. MOH London lists it at $1,086. 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.