4.21ct D IF Heart Lab Grown Diamond
ID • D/IF • IGI LG846663816
Certificate IGI LG846663816
Diamond specifications and retailer prices
About this 4.21ct lab-grown heart diamond
This 4.21ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663816 or 846663816. Listed at 4 retailers as of October 28, 2026, with prices from $6,014 to $16,387, a $10,373 spread on the same certified stone. With Clarity lists it at $16,387. 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 →4 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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