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Marquise|Lab Grown|IGI

0.42ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG544271891

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG544271891

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: £829 GBP at MOH London · As of November 1, 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 very-good cut grade and certified by IGI LG544271891 or 544271891. Listed at 15 retailers as of November 1, 2026, with prices from £80 to £829, a £750 spread on the same certified stone. MOH London lists it at £829. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544271891
Dimensions8.07 × 3.87 × 2.37 mm
L/W Ratio2.09
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
8.07 mm3.87 mm0.42 ctG / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG544271891
Side View
Table 60.5%Crown 33.9°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.2%

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: £829 GBP|Low: £77 GBP|High: £840 GBP|Avg: £267 GBP
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£198 GBP
Retailer 11£199 GBP
Retailer 8£240 GBP
Retailer 4£269 GBP
Retailer 12£319 GBP
Retailer 5£523 GBP
MOH London£829 GBP

45 data points across 13 retailers

15 retailers£80 GBP to £829 GBP

A
Cheapest Retailer
-
£80 GBP
$107 USD
A
Retailer 2
-
£93 GBP
$125 USD
View
A
Retailer 3
-
£106 GBP
$142 USD
View
Retailer 4
-
£106 GBP
$142 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£179 GBP
$240 USD
View
B+
Retailer 6
-
£180 GBP
ZAR 3,907 ZAR
View
B+
Retailer 7
-
£198 GBP
View
B+
Retailer 8
-
£199 GBP
$266 USD
View
B+
Retailer 9
-
£201 GBP
HK$2,100 HKD
View
B
Retailer 10
-
£240 GBP
View
B
Retailer 11
-
£269 GBP
$360 USD
View
B
Retailer 12
-
£319 GBP
$428 USD
View
B
Retailer 13
-
£363 GBP
$486 USD
View
B
Retailer 14
-
£523 GBP
View
Most Expensive
B
MOH London
LG544271891 · Nov 1
£829 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