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Heart|Lab Grown|IGI

1.09ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG839614866

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839614866

Diamond specifications and retailer prices

From £137 GBP
$184 USD
As of November 1, 2026
Save £385 GBP (74%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £522 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG839614866 or 839614866. Listed at 3 retailers as of October 31, 2026, with prices from £137 to £522, a £385 spread on the same certified stone. Brilliant Earth lists it at £522. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839614866
Dimensions6.02 × 7.10 × 4.32 mm
L/W Ratio1.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.02 mm7.10 mm1.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839614866
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £522 GBP|Low: £137 GBP|High: £522 GBP|Avg: £354 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£137 GBP
Retailer 2£280 GBP
Brilliant Earth£522 GBP

33 data points across 3 retailers

3 retailers£137 GBP to £522 GBP

A
Cheapest Retailer
-
£137 GBP
$184 USD
Final sale: no returns
A
Retailer 2
-
£280 GBP
View
Most Expensive
B
Brilliant Earth
21552384A · Oct 31
£522 GBP
$700 USD
View
2 more retailers have this diamond
Prices start from £137 GBPSave up to £385 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
£137 GBP