4.05ct E SI2 Radiant Lab Grown Diamond
VG • E/SI2 • IGI LG851625454
Certificate IGI LG851625454
Diamond specifications and retailer prices
About this 4.05ct lab-grown radiant diamond
This 4.05ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG851625454 or 851625454. Listed at 2 retailers as of October 30, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 →2 retailers
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