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Heart|Lab Grown|IGI

1.20ct F VVS1 Heart Lab Grown Diamond

ID • F/VVS1 • IGI LG840608732

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840608732

Diamond specifications and retailer prices

From £156 GBP
As of November 6, 2026
Save £757 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £913 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.2ct lab-grown heart diamond

This 1.2ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840608732 or 840608732. Listed at 19 retailers as of November 6, 2026, with prices from £156 to £913, a £757 spread on the same certified stone. Reve Diamonds lists it at £913. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840608732
Dimensions6.47 × 7.47 × 4.23 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.47 mm7.47 mm1.20 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840608732
Side View
Table 62.0%Crown 34.2°Girdle: MED-STKPavilion 38°Culet: NoneDepth 56.6%

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 6
Current: £328 GBP|Low: £152 GBP|High: £913 GBP|Avg: £427 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
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Retailer 5
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Retailer 11
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Retailer 18
Reve Diamonds
November 6, 2026
Retailer 4£156 GBP
Retailer 17£181 GBP
Retailer 10£190 GBP
Retailer 8£194 GBP
Retailer 5£204 GBP
Retailer 11£235 GBP
Retailer 1£328 GBP
Retailer 6£333 GBP
Retailer 12£353 GBP
Retailer 2£421 GBP
Retailer 3£431 GBP
Retailer 16£473 GBP
Retailer 15£519 GBP
Retailer 18£622 GBP
Retailer 7£662 GBP
Retailer 9£684 GBP
Retailer 14£695 GBP
Retailer 13£774 GBP
Reve Diamonds£913 GBP

30 data points across 19 retailers

19 retailers£156 GBP to £913 GBP

A
Cheapest Retailer
-
£156 GBP
A
Retailer 2
-
£181 GBP
View
Retailer 3
-
£190 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£194 GBP
View
A
Retailer 5
-
£204 GBP
View
Final sale: no returns
A
Retailer 6
-
£235 GBP
View
A
Retailer 7
-
£328 GBP
View
A
Retailer 8
-
£333 GBP
View
B+
Retailer 9
-
£353 GBP
View
B+
Retailer 10
-
£421 GBP
View
B+
Retailer 11
-
£431 GBP
View
B+
Retailer 12
-
£473 GBP
View
B+
Retailer 13
-
£519 GBP
View
B
Retailer 14
-
£622 GBP
View
B
Retailer 15
-
£662 GBP
View
Retailer 16
-
£684 GBP
View
Price last confirmed 8 days ago
B
Retailer 17
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£695 GBP
View
B
Retailer 18
-
£774 GBP
View
Most Expensive
B
Reve Diamonds
15447FF03 · Nov 6
£913 GBP
$1,222 USD
View
18 more retailers have this diamond
Prices start from £156 GBPSave up to £757 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
£156 GBP