21.51ct J VS1 Radiant Lab Grown Diamond
ID • J/VS1 • IGI LG802604946
Shape and cutting style on the report: Cut cornered rectangular modified brilliant
Certificate IGI LG802604946
Diamond specifications and retailer prices
About this 21.51ct lab-grown radiant diamond
This 21.51ct lab-grown radiant sits in the over five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG802604946 or 802604946. Listed at 13 retailers as of October 31, 2026, with prices from $7,285 to $31,228, a $23,943 spread on the same certified stone. Taylor and Hart lists it at $31,228. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.
The 4Cs
Specifications
Caratlytics Score
How it works →13 retailers
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