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Marquise|Lab Grown|IGI

1.50ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG831621343

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831621343

Diamond specifications and retailer prices

From £292 GBP
As of November 3, 2026
Save £703 GBP (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £995 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831621343 or 831621343. Listed at 7 retailers as of November 2, 2026, with prices from £292 to £995, a £703 spread on the same certified stone. MOH London lists it at £995. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831621343
Dimensions12.39 × 5.94 × 3.57 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.39 mm5.94 mm1.50 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831621343
Side View
Table 63.0%Crown 33°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 60.1%

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 3
Current: £995 GBP|Low: £285 GBP|High: £999 GBP|Avg: £597 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4£292 GBP
Retailer 7£301 GBP
Retailer 3£427 GBP
Retailer 2£432 GBP
Retailer 5£885 GBP
Retailer 6£922 GBP
MOH London£995 GBP

28 data points across 7 retailers

7 retailers£292 GBP to £995 GBP

A
Cheapest Retailer
-
£292 GBP
B+
Retailer 2
-
£301 GBP
View
A
Retailer 3
-
£427 GBP
View
A
Retailer 4
-
£432 GBP
View
B
Retailer 5
-
£885 GBP
View
B
Retailer 6
-
£922 GBP
View
Most Expensive
B
MOH London
LG831621343 · Nov 2
£995 GBP
View
6 more retailers have this diamond
Prices start from £292 GBPSave up to £703 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
1.50ct Marquise
£292 GBP