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Heart|Lab Grown|IGI

1.26ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG837619190

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837619190

Diamond specifications and retailer prices

From £244 GBP
As of November 4, 2026
Save £596 GBP (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £840 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.26ct lab-grown heart diamond

This 1.26ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837619190 or 837619190. Listed at 6 retailers as of November 4, 2026, with prices from £244 to £840, a £596 spread on the same certified stone. MOH London lists it at £840. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.3°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837619190
Dimensions7.55 × 6.98 × 4.33 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.55 mm6.98 mm1.26 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837619190
Side View
Table 69.0%Crown 30.3°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 57.4%

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: £840 GBP|Low: £244 GBP|High: £852 GBP|Avg: £447 GBP|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 6£244 GBP
Retailer 3£302 GBP
Retailer 2£325 GBP
Retailer 4£350 GBP
Retailer 5£618 GBP
MOH London£840 GBP

38 data points across 6 retailers

6 retailers£244 GBP to £840 GBP

B+
Cheapest Retailer
-
£244 GBP
A
Retailer 2
-
£302 GBP
View
A
Retailer 3
-
£325 GBP
View
B+
Retailer 4
-
£350 GBP
View
B
Retailer 5
-
£618 GBP
View
Most Expensive
B
MOH London
LG837619190 · Nov 5
£840 GBP
View
5 more retailers have this diamond
Prices start from £244 GBPSave up to £596 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
1.26ct Heart
£244 GBP