5.51ct D FL Round Lab Grown Diamond
ID • D/FL • IGI LG818623896
Shape and cutting style on the report: Round brilliant
Certificate IGI LG818623896
Diamond specifications and retailer prices
About this 5.51ct lab-grown round diamond
This 5.51ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818623896 or 818623896. Listed at 21 retailers as of October 31, 2026, with prices from £5,188 to £36,749, a £31,562 spread on the same certified stone. Mervis Diamond Importers lists it at £36,749. 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 →21 retailers
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