4.00ct D IF Marquise Lab Grown Diamond

About this 4ct lab-grown marquise diamond

This 4ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG732514825 or 732514825. Listed at 27 retailers as of October 31, 2026, with prices from $4,313 to $25,992, a $21,679 spread on the same certified stone. With Clarity lists it at $25,992. 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.