5.09ct D IF Marquise Lab Grown Diamond
ID • D/IF • IGI LG818631869
Shape and cutting style on the report: Marquise brilliant
Certificate IGI LG818631869
Diamond specifications and retailer prices
About this 5.09ct lab-grown marquise diamond
This 5.09ct lab-grown marquise sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818631869 or 818631869. Listed at 14 retailers as of October 26, 2026, with a 136% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 →14 retailers
Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.
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