0.78ct J SI1 Marquise Natural Diamond

About this 0.78ct natural marquise diamond

This 0.78ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 502165564. Listed at 16 retailers as of October 30, 2026, with prices from $716 to $3,030, a $2,314 spread on the same certified stone. NZ Jewellers lists it at $3,030. 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.