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Heart|Lab Grown|IGI

1.31ct F VVS1 Heart Lab Grown Diamond

F/VVS1 • IGI LGG1215709

Certificate IGI LGG1215709

Diamond specifications and retailer prices

From £339 GBP
As of November 6, 2026
Save £462 GBP (58%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £801 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.31ct lab-grown heart diamond

This 1.31ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included) and certified by IGI LGG1215709 or G1215709. Listed at 2 retailers as of November 5, 2026, with prices from £339 to £801, a £462 spread on the same certified stone. MOH London lists it at £801. 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

1.31
Carat
F
Colour
VVS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGG1215709
Dimensions6.83 × 7.59 × 4.35 mm
L/W Ratio1.11
Top View
6.83 mm7.59 mm1.31 ctF / VVS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LGG1215709
Side View
Table 61.0%CrownGirdle: STK-UNDPavilionCulet: NoneDepth 57.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £801 GBP|Low: £330 GBP|High: £813 GBP|Avg: £575 GBP|-1.3%
MOH London
Retailer 2
November 6, 2026
Retailer 2£339 GBP
MOH London£801 GBP

17 data points across 2 retailers

2 retailers£339 GBP to £801 GBP

B+
Cheapest Retailer
-
£339 GBP
Most Expensive
B
MOH London
LGG1215709 · Nov 5
£801 GBP
View
1 more retailer has this diamond
Prices start from £339 GBPSave up to £462 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.

B+
1.31ct Heart
£339 GBP