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Marquise|Lab Grown|IGI

1.20ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG799642423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799642423

Diamond specifications and retailer prices

From £150 GBP
As of November 6, 2026
Save £718 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £868 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG799642423 or 799642423. Listed at 19 retailers as of November 5, 2026, with prices from £150 to £868, a £718 spread on the same certified stone. MOH London lists it at £868. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799642423
Dimensions11.27 × 5.45 × 3.40 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.27 mm5.45 mm1.20 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799642423
Side View
Table 59.0%Crown 33.3°Girdle: STK-THKPavilion 40°Culet: NoneDepth 62.4%

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 6
Current: £868 GBP|Low: £143 GBP|High: £883 GBP|Avg: £430 GBP|-1.7%
MOH London
Retailer 2
Retailer 3
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Retailer 19
November 6, 2026
Retailer 19£150 GBP
Retailer 18£167 GBP
Retailer 14£174 GBP
Retailer 6£186 GBP
Retailer 10£187 GBP
Retailer 3£323 GBP
Retailer 11£334 GBP
Retailer 2£337 GBP
Retailer 16£387 GBP
Retailer 17£424 GBP
Retailer 8£467 GBP
Retailer 13£491 GBP
Retailer 12£496 GBP
Retailer 15£598 GBP
Retailer 7£608 GBP
Retailer 4£638 GBP
Retailer 5£638 GBP
Retailer 9£859 GBP
MOH London£868 GBP

40 data points across 19 retailers

19 retailers£150 GBP to £868 GBP

A
Cheapest Retailer
-
£150 GBP
A
Retailer 2
-
£167 GBP
View
Final sale: no returns
A
Retailer 3
-
£174 GBP
View
A
Retailer 4
-
£186 GBP
View
Retailer 5
-
£187 GBP
View
Price last confirmed 13 days ago
A
Retailer 6
-
£323 GBP
View
A
Retailer 7
-
£334 GBP
View
A
Retailer 8
-
£337 GBP
View
B+
Retailer 9
-
£387 GBP
View
B+
Retailer 10
-
£424 GBP
View
B+
Retailer 11
-
£467 GBP
View
B+
Retailer 12
-
£491 GBP
View
B+
Retailer 13
-
£496 GBP
View
B+
Retailer 14
-
£598 GBP
View
B+
Retailer 15
-
£608 GBP
View
B
Retailer 16
-
£638 GBP
View
B+
Retailer 17
-
£638 GBP
View
B
Retailer 18
-
£859 GBP
View
Most Expensive
B
MOH London
LG799642423 · Nov 5
£868 GBP
View
18 more retailers have this diamond
Prices start from £150 GBPSave up to £718 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 Marquise
£150 GBP