Marquise|Lab Grown|IGI

4.05ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG839647453

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839647453

Diamond specifications and retailer prices

From £850 GBP
$1,132 USD
As of October 23, 2026
Save £1,106 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,517 GBP at MOH London · As of October 18, 2026
View at MOH London

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647453 or 839647453. Listed at 17 retailers as of October 23, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.05
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647453
Dimensions15.95 × 8.41 × 5.28 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.95 mm8.41 mm4.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647453
Side View
Table 61.0%Crown 34.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 23
Current: £2,517 GBP|Low: £505 GBP|High: £2,537 GBP|Avg: £1,305 GBP|+3.8%
MOH London
Retailer 2
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Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 18
October 27, 2026
Retailer 4£512 GBP
Retailer 12£512 GBP
Retailer 9£573 GBP
Retailer 3£594 GBP
Retailer 17£594 GBP
Retailer 13£732 GBP
Retailer 16£850 GBP
Retailer 11£940 GBP
Retailer 2£1,038 GBP
Retailer 14£1,280 GBP
Retailer 8£1,342 GBP
Retailer 15£1,518 GBP
Retailer 18£1,843 GBP
Retailer 6£1,956 GBP
Retailer 7£2,027 GBP
Retailer 10£2,049 GBP
Retailer 5£2,395 GBP
MOH London£2,517 GBP

24 data points across 18 retailers

17 retailers£850 GBP to £1,956 GBP

Retailer 1
-
£512 GBP
$682 USD
Price last confirmed 8 days ago
Retailer 2
-
£512 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£594 GBP
$791 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£594 GBP
$791 USD
View
Price last confirmed 13 days ago
Retailer 5
-
£732 GBP
$975 USD
View
Price last confirmed 6 days ago
B+
Retailer 6
-
£850 GBP
$1,132 USD
View
Retailer 7
-
£940 GBP
View
Price last confirmed 7 days ago
A
Retailer 8
-
£1,038 GBP
€1,316 EUR
View
Retailer 9
-
£1,280 GBP
A$2,623 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
£1,342 GBP
$1,787 USD
View
B+
Retailer 11
-
£1,518 GBP
$2,021 USD
View
Retailer 12
-
£1,843 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£1,956 GBP
$2,605 USD
View
Retailer 14
-
£2,027 GBP
$2,699 USD
View
Price last confirmed 7 days ago
Retailer 15
-
£2,049 GBP
$2,729 USD
View
Price last confirmed 8 days ago
Retailer 16
-
£2,395 GBP
A$4,906 AUD
View
Price last confirmed 21 days ago
Most Expensive
MOH London
LG839647453 · Oct 18
£2,517 GBP
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from £850 GBPSave up to £1,106 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
4.05ct Marquise
£850 GBP