Heart|Lab Grown|IGI
3.09ct D SI2 Heart Lab Grown Diamond
D/SI2
Diamond specifications and retailer prices
From £492 GBP
As of October 30, 2026
2 retailers carry this diamond
Most expensive: £668 GBP at MoiMoi Australia · As of October 22, 2026
About this 3.09ct lab-grown heart diamond
This 3.09ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and SI2 clarity (slightly-included) and certified by IGI. Listed at 2 retailers as of October 30, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.
The 4Cs
3.09
Carat
D
Colour
SI2
Clarity
-
Cut
Specifications
Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.87 × 9.89 × 5.99 mm
L/W Ratio1.11
Top View
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Caratlytics Score
How it works →B+
Very Good
Strong quality and value balance
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2 retailers
B+
Cheapest Retailer
£492 GBP
1 more retailer has this diamond
Prices start from £492 GBP
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.