17.78ct H VS1 Cushion Lab Grown Diamond
VG • H/VS1 • IGI LG629479691
Shape and cutting style on the report: Square cushion brilliant
Certificate IGI LG629479691
Diamond specifications and retailer prices
About this 17.78ct lab-grown cushion diamond
This 17.78ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG629479691 or 629479691. Listed at 14 retailers as of October 30, 2026, with prices from £7,183 to £27,313, a £20,130 spread on the same certified stone. Taylor and Hart lists it at £27,313. 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.
The 4Cs
Specifications
Caratlytics Score
How it works →14 retailers
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