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Heart|Lab Grown|IGI

1.51ct G VVS1 Heart Lab Grown Diamond

EX • G/VVS1 • IGI LG840637269

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840637269

Diamond specifications and retailer prices

From £395 GBP
As of November 4, 2026
Save £548 GBP (58%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £943 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840637269 or 840637269. Listed at 6 retailers as of November 4, 2026, with prices from £395 to £943, a £548 spread on the same certified stone. MOH London lists it at £943. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840637269
Dimensions6.81 × 7.84 × 4.60 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue
Top View
6.81 mm7.84 mm1.51 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840637269
Side View
Table 61.0%Crown 38.6°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £943 GBP|Low: £395 GBP|High: £957 GBP|Avg: £568 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3£395 GBP
Retailer 5£431 GBP
Retailer 2£443 GBP
Retailer 4£479 GBP
Retailer 6£796 GBP
MOH London£943 GBP

34 data points across 6 retailers

6 retailers£395 GBP to £943 GBP

A
Cheapest Retailer
-
£395 GBP
B+
Retailer 2
-
£431 GBP
View
B+
Retailer 3
-
£443 GBP
View
B+
Retailer 4
-
£479 GBP
View
B
Retailer 5
-
£796 GBP
View
Most Expensive
B
MOH London
LG840637269 · Nov 5
£943 GBP
View
5 more retailers have this diamond
Prices start from £395 GBPSave up to £548 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.

A
1.51ct Heart
£395 GBP