1.78ct H SI2 Radiant Lab Grown Diamond
ID • H/SI2 • IGI LG512231558
Shape and cutting style on the report: Cut cornered rectangular modified brilliant
Certificate IGI LG512231558
Diamond specifications and retailer prices
About this 1.78ct lab-grown radiant diamond
This 1.78ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512231558 or 512231558. Listed at 9 retailers as of October 27, 2026, with prices from €931 to €4,231, a €3,300 spread on the same certified stone. MOH London lists it at €4,231. 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 →9 retailers
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