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Marquise|Lab Grown|IGI

0.42ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG541254542

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG541254542

Diamond specifications and retailer prices

From £80 GBP
$107 USD
As of November 2, 2026
Save £750 GBP (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £830 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.42ct lab-grown marquise diamond

This 0.42ct lab-grown marquise sits in the sub-half-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG541254542 or 541254542. Listed at 15 retailers as of October 26, 2026, with prices from £80 to £830, a £750 spread on the same certified stone. MOH London lists it at £830. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.42
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541254542
Dimensions7.54 × 3.92 × 2.45 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
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
7.54 mm3.92 mm0.42 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG541254542
Side View
Table 60.5%Crown 33.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 62.5%

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 2
Current: £830 GBP|Low: £77 GBP|High: £839 GBP|Avg: £267 GBP|+0.2%
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
November 2, 2026
Retailer 9£80 GBP
Retailer 13£93 GBP
Retailer 3£106 GBP
Retailer 10£106 GBP
Retailer 7£179 GBP
Retailer 6£180 GBP
Retailer 2£197 GBP
Retailer 11£198 GBP
Retailer 8£240 GBP
Retailer 4£268 GBP
Retailer 12£319 GBP
Retailer 5£522 GBP
MOH London£830 GBP

44 data points across 13 retailers

15 retailers£80 GBP to £830 GBP

A
Cheapest Retailer
-
£80 GBP
$107 USD
A
Retailer 2
-
£93 GBP
$125 USD
View
Retailer 3
-
£106 GBP
$142 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
£106 GBP
$142 USD
View
A
Retailer 5
-
£179 GBP
$240 USD
View
B+
Retailer 6
-
£180 GBP
ZAR 3,907 ZAR
View
B+
Retailer 7
-
£197 GBP
View
B+
Retailer 8
-
£198 GBP
$266 USD
View
B+
Retailer 9
-
£200 GBP
HK$2,100 HKD
View
B+
Retailer 10
-
£240 GBP
View
B+
Retailer 11
-
£268 GBP
$360 USD
View
B
Retailer 12
-
£319 GBP
$428 USD
View
B
Retailer 13
-
£362 GBP
$486 USD
View
B
Retailer 14
-
£522 GBP
View
Most Expensive
B
MOH London
LG541254542 · Oct 26
£830 GBP
View
14 more retailers have this diamond
Prices start from £80 GBPSave up to £750 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
0.42ct Marquise
£80 GBP