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Heart|Lab Grown|IGI

1.20ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG848671810

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG848671810

Diamond specifications and retailer prices

From £127 GBP
As of November 4, 2026
Save £610 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £737 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct lab-grown heart diamond

This 1.2ct lab-grown heart sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848671810 or 848671810. Listed at 14 retailers as of November 2, 2026, with prices from £127 to £737, a £610 spread on the same certified stone. MOH London lists it at £737. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848671810
Dimensions6.43 × 7.40 × 4.49 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm7.40 mm1.20 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848671810
Side View
Table 61.0%Crown 37.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £737 GBP|Low: £127 GBP|High: £737 GBP|Avg: £387 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 9£127 GBP
Retailer 11£141 GBP
Retailer 13£148 GBP
Retailer 7£158 GBP
Retailer 2£192 GBP
Retailer 8£279 GBP
Retailer 4£282 GBP
Retailer 14£317 GBP
Retailer 3£343 GBP
Retailer 10£507 GBP
Retailer 5£520 GBP
Retailer 12£536 GBP
Retailer 6£547 GBP
MOH London£737 GBP

11 data points across 14 retailers

14 retailers£127 GBP to £737 GBP

A
Cheapest Retailer
-
£127 GBP
A
Retailer 2
-
£141 GBP
View
Final sale: no returns
A
Retailer 3
-
£148 GBP
View
A
Retailer 4
-
£158 GBP
View
A
Retailer 5
-
£192 GBP
View
A
Retailer 6
-
£279 GBP
View
A
Retailer 7
-
£282 GBP
View
B+
Retailer 8
-
£317 GBP
View
B+
Retailer 9
-
£343 GBP
View
B
Retailer 10
-
£507 GBP
View
B
Retailer 11
-
£520 GBP
View
B
Retailer 12
-
£536 GBP
View
B
Retailer 13
-
£547 GBP
View
Most Expensive
B
MOH London
LG848671810 · Nov 2
£737 GBP
View
13 more retailers have this diamond
Prices start from £127 GBPSave up to £610 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
1.20ct Heart
£127 GBP