1.51ct G SI1 Round Lab Grown Diamond

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG224661776 or 224661776. Listed at 15 retailers as of October 29, 2026, with prices from $400 to $2,200, a $1,800 spread on the same certified stone. MOH London lists it at $2,200. 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.