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Marquise|Lab Grown|IGI

1.73ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG541281106

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG541281106

Diamond specifications and retailer prices

From £396 GBP
$531 USD
As of November 1, 2026
Save £554 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £949 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.73ct lab-grown marquise diamond

This 1.73ct 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 LG541281106 or 541281106. Listed at 7 retailers as of November 1, 2026, with prices from £396 to £949, a £554 spread on the same certified stone. MOH London lists it at £949. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541281106
Dimensions11.81 × 6.58 × 3.97 mm
L/W Ratio1.79
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
11.81 mm6.58 mm1.73 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541281106
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £949 GBP|Low: £237 GBP|High: £1,018 GBP|Avg: £541 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6£237 GBP
Retailer 5£396 GBP
Retailer 3£409 GBP
Retailer 8£432 GBP
Retailer 2£448 GBP
Retailer 7£459 GBP
Retailer 4£932 GBP
MOH London£949 GBP

42 data points across 8 retailers

7 retailers£396 GBP to £949 GBP

Retailer 1
-
£237 GBP
$318 USD
Price last confirmed 8 days ago
A
Retailer 2
-
£396 GBP
$531 USD
View
A
Retailer 3
-
£409 GBP
ZAR 8,866 ZAR
View
A
Retailer 4
-
£448 GBP
View
A
Retailer 5
-
£459 GBP
$616 USD
View
B
Retailer 6
-
£932 GBP
$1,251 USD
View
Most Expensive
B+
MOH London
LG541281106 · Nov 1
£949 GBP
View
6 more retailers have this diamond
Prices start from £396 GBPSave up to £554 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
1.73ct Marquise
£396 GBP