4.51ct D FL Heart Lab Grown Diamond
ID • D/FL • IGI LG816612944
Shape and cutting style on the report: Heart brilliant
Certificate IGI LG816612944
Diamond specifications and retailer prices
About this 4.51ct lab-grown heart diamond
This 4.51ct lab-grown heart 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 LG816612944 or 816612944. Listed at 5 retailers as of October 31, 2026, with prices from $9,355 to $18,998, a $9,643 spread on the same certified stone. Brilliant Earth lists it at $18,998. 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 →5 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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