1.51ct D IF Princess Lab Grown Diamond
D/IF
Diamond specifications and retailer prices
About this 1.51ct lab-grown princess diamond
This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI. Listed at 3 retailers as of October 30, 2026, with prices from £656 to £2,533, a £1,877 spread on the same certified stone. The Diamond Guys lists it at £2,533. 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 →3 retailers
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