4.00ct F FL Radiant Lab Grown Diamond
EX • F/FL • IGI LG821659255
Shape and cutting style on the report: Cut cornered rectangular mixed cut
Certificate IGI LG821659255
Diamond specifications and retailer prices
About this 4ct lab-grown radiant diamond
This 4ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821659255 or 821659255. Listed at 13 retailers as of October 31, 2026, with a 257% 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 →13 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.