0.30ct J SI1 Marquise Natural Diamond

About this 0.3ct natural marquise diamond

This 0.3ct natural marquise 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 IGI 842608822. Listed at 4 retailers as of October 30, 2026, with prices from $109 to $302, a $193 spread on the same certified stone. Yorxs lists it at $302. 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.