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Marquise|Lab Grown|IGI

1.22ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG811679778

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811679778

Diamond specifications and retailer prices

From £147 GBP
As of November 6, 2026
Save £706 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £853 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.22ct lab-grown marquise diamond

This 1.22ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811679778 or 811679778. Listed at 17 retailers as of November 5, 2026, with prices from £147 to £853, a £706 spread on the same certified stone. MOH London lists it at £853. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle43.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811679778
Dimensions10.72 × 5.53 × 3.74 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.72 mm5.53 mm1.22 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811679778
Side View
Table 58.0%Crown 32.2°Girdle: MED-STKPavilion 43.7°Culet: NoneDepth 67.6%

Caratlytics Score

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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: £853 GBP|Low: £142 GBP|High: £868 GBP|Avg: £401 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 3£147 GBP
Retailer 12£171 GBP
Retailer 6£183 GBP
Retailer 7£185 GBP
Retailer 2£309 GBP
Retailer 4£318 GBP
Retailer 10£331 GBP
Retailer 15£333 GBP
Retailer 9£334 GBP
Retailer 16£366 GBP
Retailer 11£446 GBP
Retailer 8£504 GBP
Retailer 13£588 GBP
Retailer 14£590 GBP
Retailer 5£628 GBP
MOH London£853 GBP

45 data points across 16 retailers

17 retailers£147 GBP to £853 GBP

A
Cheapest Retailer
-
£147 GBP
A
Retailer 2
-
£171 GBP
View
A
Retailer 3
-
£183 GBP
View
Retailer 4
-
£185 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
£309 GBP
View
A
Retailer 6
-
£318 GBP
View
A
Retailer 7
-
£331 GBP
View
A
Retailer 8
-
£333 GBP
View
A
Retailer 9
-
£334 GBP
View
A
Retailer 10
-
£366 GBP
View
B+
Retailer 11
-
£446 GBP
View
B+
Retailer 12
-
£504 GBP
View
B+
Retailer 13
-
£588 GBP
View
B+
Retailer 14
-
£590 GBP
View
B
Retailer 15
-
£628 GBP
View
B
Retailer 16
-
£635 GBP
View
Most Expensive
B
MOH London
LG811679778 · Nov 5
£853 GBP
View
16 more retailers have this diamond
Prices start from £147 GBPSave up to £706 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
1.22ct Marquise
£147 GBP