4.51ct J SI2 Round Lab Grown Diamond
EX • J/SI2
Diamond specifications and retailer prices
About this 4.51ct lab-grown round diamond
This 4.51ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of October 29, 2026, with a relatively tight 0% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.
The 4Cs
Specifications
Caratlytics Score
How it works →2 retailers
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