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Heart|Lab Grown|IGI

1.09ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG818679908

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818679908

Diamond specifications and retailer prices

From £260 GBP
As of November 2, 2026
Save £430 GBP (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £690 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.09ct lab-grown heart diamond

This 1.09ct 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 LG818679908 or 818679908. Listed at 6 retailers as of November 2, 2026, with prices from £260 to £690, a £430 spread on the same certified stone. MOH London lists it at £690. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818679908
Dimensions6.93 × 6.57 × 4.01 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.93 mm6.57 mm1.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818679908
Side View
Table 61.0%Crown 35.6°Girdle: ThickPavilion 38.3°Culet: NoneDepth 57.9%

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 2
Current: £690 GBP|Low: £251 GBP|High: £719 GBP|Avg: £367 GBP|-4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2£260 GBP
Retailer 5£268 GBP
Retailer 4£268 GBP
Retailer 3£280 GBP
Retailer 6£515 GBP
MOH London£690 GBP

26 data points across 6 retailers

6 retailers£260 GBP to £690 GBP

A
Cheapest Retailer
-
£260 GBP
A
Retailer 2
-
£268 GBP
$359 USD
View
A
Retailer 3
-
£268 GBP
$360 USD
View
A
Retailer 4
-
£280 GBP
View
B
Retailer 5
-
£515 GBP
$692 USD
View
Most Expensive
B
MOH London
LG818679908 · Nov 2
£690 GBP
View
5 more retailers have this diamond
Prices start from £260 GBPSave up to £430 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
1.09ct Heart
£260 GBP