1.73ct E SI1 Round Lab Grown Diamond

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG652478204 or 652478204. Listed at 15 retailers as of October 28, 2026, with prices from $439 to $1,196, a $757 spread on the same certified stone. MOH London lists it at $1,196. 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.