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Marquise|Lab Grown|IGI

0.40ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG539215434

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG539215434

Diamond specifications and retailer prices

From £78 GBP
$104 USD
As of October 30, 2026
Save £425 GBP (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £810 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.4ct lab-grown marquise diamond

This 0.4ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG539215434 or 539215434. Listed at 15 retailers as of October 29, 2026, with a 545% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.40
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.9°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539215434
Dimensions7.82 × 3.64 × 2.41 mm
L/W Ratio2.15
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
7.82 mm3.64 mm0.40 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG539215434
Side View
Table 60.5%Crown 35.9°Girdle: STK-THKPavilion 41.5°Culet: NoneDepth 66.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £810 GBP|Low: £74 GBP|High: £815 GBP|Avg: £252 GBP|-0.6%
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
October 30, 2026
Retailer 8£78 GBP
Retailer 12£90 GBP
Retailer 9£103 GBP
Retailer 13£103 GBP
Retailer 7£174 GBP
Retailer 5£180 GBP
Retailer 2£189 GBP
Retailer 11£194 GBP
Retailer 6£248 GBP
Retailer 3£267 GBP
Retailer 10£310 GBP
Retailer 4£504 GBP
MOH London£810 GBP

44 data points across 13 retailers

15 retailers£78 GBP to £504 GBP

A
Cheapest Retailer
-
£78 GBP
$104 USD
A
Retailer 2
-
£90 GBP
$120 USD
View
A
Retailer 3
-
£103 GBP
$137 USD
View
A
Retailer 4
-
£103 GBP
$137 USD
View
B+
Retailer 5
-
£174 GBP
ZAR 3,749 ZAR
View
B+
Retailer 6
-
£180 GBP
$240 USD
View
B+
Retailer 7
-
£189 GBP
View
B+
Retailer 8
-
£194 GBP
$259 USD
View
B+
Retailer 9
-
£211 GBP
HK$2,200 HKD
View
B+
Retailer 10
-
£248 GBP
View
B
Retailer 11
-
£267 GBP
$355 USD
View
B
Retailer 12
-
£310 GBP
$413 USD
View
B
Retailer 13
-
£354 GBP
$471 USD
View
B
Retailer 14
-
£504 GBP
View
Most Expensive
MOH London
LG539215434 · Oct 29
£810 GBP
View
Price under review
14 more retailers have this diamond
Prices start from £78 GBPSave up to £425 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
0.40ct Marquise
£78 GBP