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Heart|Lab Grown|IGI

1.31ct F VVS1 Heart Lab Grown Diamond

EX • F/VVS1 • IGI LG1215709

Certificate IGI LG1215709

Diamond specifications and retailer prices

From €439 EUR
$492 USD
As of November 2, 2026
Save €15 EUR (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €454 EUR at Adiamor · As of November 1, 2026
View at Adiamor

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), with a top-tier cut grade and certified by IGI LG1215709 or 1215709. Listed at 2 retailers as of November 1, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
F
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG1215709
Dimensions6.83 × 7.59 × 4.35 mm
L/W Ratio1.11
Top View
6.83 mm7.59 mm1.31 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG1215709
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 2
Current: €454 EUR|Low: €293 EUR|High: €454 EUR|Avg: €392 EUR
Adiamor
Retailer 2
Retailer 3
September 23, 2026
Retailer 3€293 EUR
Retailer 2€439 EUR
Adiamor€454 EUR

5 data points across 3 retailers

2 retailers€439 EUR to €454 EUR

B+
Cheapest Retailer
-
€439 EUR
$492 USD
Most Expensive
B+
Adiamor
D-73198368 · Nov 1
€454 EUR
$509 USD
View
1 more retailer has this diamond
Prices start from €439 EURSave up to €15 EUR

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
€439 EUR