4.03ct D FL Marquise Lab Grown Diamond
ID • D/FL
Diamond specifications and retailer prices
About this 4.03ct lab-grown marquise diamond
This 4.03ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI. Listed at 7 retailers as of October 30, 2026, with prices from £6,715 to £14,302, a £7,586 spread on the same certified stone. Blue Nile lists it at £14,302. 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 →7 retailers
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