CaratHunter
Plans
Heart|Lab Grown|IGI

1.09ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG851650443

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG851650443

Diamond specifications and retailer prices

From £266 GBP
As of November 2, 2026
Save £438 GBP (62%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £704 GBP at MOH London · As of November 1, 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 LG851650443 or 851650443. Listed at 8 retailers as of November 1, 2026, with prices from £266 to £704, a £438 spread on the same certified stone. MOH London lists it at £704. 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 angle37.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851650443
Dimensions6.11 × 7.07 × 4.32 mm
L/W Ratio1.16
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.11 mm7.07 mm1.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851650443
Side View
Table 59.0%Crown 37.7°Girdle: STK-VTKPavilion 40°Culet: NoneDepth 61.1%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £704 GBP|Low: £266 GBP|High: £715 GBP|Avg: £406 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2£266 GBP
Retailer 8£270 GBP
Retailer 5£271 GBP
Retailer 6£286 GBP
Retailer 3£333 GBP
Retailer 7£492 GBP
Retailer 4£525 GBP
MOH London£704 GBP

6 data points across 8 retailers

8 retailers£266 GBP to £704 GBP

A
Cheapest Retailer
-
£266 GBP
A
Retailer 2
-
£270 GBP
$362 USD
View
A
Retailer 3
-
£271 GBP
$364 USD
View
A
Retailer 4
-
£286 GBP
View
B+
Retailer 5
-
£333 GBP
$447 USD
View
B
Retailer 6
-
£492 GBP
$660 USD
View
B
Retailer 7
-
£525 GBP
$705 USD
View
Most Expensive
B
MOH London
LG851650443 · Nov 1
£704 GBP
View
7 more retailers have this diamond
Prices start from £266 GBPSave up to £438 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
£266 GBP