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Marquise|Lab Grown|IGI

1.37ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG541281071

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG541281071

Diamond specifications and retailer prices

From £306 GBP
As of November 4, 2026
Save £507 GBP (62%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £813 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.37ct lab-grown marquise diamond

This 1.37ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG541281071 or 541281071. Listed at 4 retailers as of November 1, 2026, with prices from £306 to £813, a £507 spread on the same certified stone. MOH London lists it at £813. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541281071
Dimensions10.82 × 5.97 × 3.67 mm
L/W Ratio1.81
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.82 mm5.97 mm1.37 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541281071
Side View
Table 61.5%Crown 35.4°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £813 GBP|Low: £287 GBP|High: £823 GBP|Avg: £429 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 3£306 GBP
Retailer 2£313 GBP
Retailer 5£363 GBP
Retailer 4£400 GBP
MOH London£813 GBP

42 data points across 5 retailers

4 retailers£306 GBP to £813 GBP

A
Cheapest Retailer
-
£306 GBP
A
Retailer 2
-
£313 GBP
View
A
Retailer 3
-
£400 GBP
View
Most Expensive
B
MOH London
LG541281071 · Nov 1
£813 GBP
View
3 more retailers have this diamond
Prices start from £306 GBPSave up to £507 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
1.37ct Marquise
£306 GBP