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Marquise|Lab Grown|IGI

0.42ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG804604313

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG804604313

Diamond specifications and retailer prices

From £119 GBP
$160 USD
As of November 1, 2026
Save £502 GBP (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £621 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG804604313 or 804604313. Listed at 7 retailers as of November 1, 2026, with prices from £119 to £621, a £502 spread on the same certified stone. MOH London lists it at £621. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.42
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804604313
Dimensions8.31 × 3.94 × 2.35 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.31 mm3.94 mm0.42 ctF / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804604313
Side View
Table 56.0%Crown 34.3°Girdle: THN-MEDPavilion 39.6°Culet: NoneDepth 59.6%

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 1
Current: £621 GBP|Low: £110 GBP|High: £628 GBP|Avg: £265 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5£119 GBP
Retailer 2£158 GBP
Retailer 3£160 GBP
Retailer 4£204 GBP
Retailer 6£311 GBP
MOH London£621 GBP

43 data points across 6 retailers

7 retailers£119 GBP to £621 GBP

A
Cheapest Retailer
-
£119 GBP
$160 USD
A
Retailer 2
-
£158 GBP
View
A
Retailer 3
-
£160 GBP
€205 EUR
View
B+
Retailer 4
-
£204 GBP
View
B
Retailer 5
-
£311 GBP
$417 USD
View
B
Retailer 6
-
£316 GBP
$424 USD
View
Most Expensive
B
MOH London
LG804604313 · Nov 1
£621 GBP
View
6 more retailers have this diamond
Prices start from £119 GBPSave up to £502 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
£119 GBP