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Marquise|Lab Grown|IGI

0.40ct D VS2 Marquise Lab Grown Diamond

ID • D/VS2 • IGI LG840641609

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840641609

Diamond specifications and retailer prices

From £63 GBP
$85 USD
As of October 30, 2026
Save £455 GBP (88%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £518 GBP at MOH London · As of October 26, 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 D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840641609 or 840641609. Listed at 10 retailers as of October 26, 2026, with prices from £63 to £518, a £455 spread on the same certified stone. MOH London lists it at £518. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.40
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.6°
Pavilion angle43°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840641609
Dimensions8.20 × 3.67 × 2.33 mm
L/W Ratio2.23
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm3.67 mm0.40 ctD / VS2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG840641609
Side View
Table 68.0%Crown 32.6°Girdle: MED-STKPavilion 43°CuletDepth 63.5%

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: £518 GBP|Low: £63 GBP|High: £546 GBP|Avg: £206 GBP|-5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5£63 GBP
Retailer 8£97 GBP
Retailer 2£133 GBP
Retailer 6£134 GBP
Retailer 4£138 GBP
Retailer 3£181 GBP
Retailer 10£239 GBP
Retailer 7£271 GBP
Retailer 9£375 GBP
MOH London£518 GBP

23 data points across 10 retailers

10 retailers£63 GBP to £518 GBP

A
Cheapest Retailer
-
£63 GBP
$85 USD
Final sale: no returns
A
Retailer 2
-
£97 GBP
$130 USD
View
B+
Retailer 3
-
£133 GBP
View
A
Retailer 4
-
£134 GBP
$180 USD
View
A
Retailer 5
-
£138 GBP
€176 EUR
View
B+
Retailer 6
-
£181 GBP
View
B
Retailer 7
-
£239 GBP
$320 USD
View
B
Retailer 8
-
£271 GBP
$364 USD
View
B
Retailer 9
-
£375 GBP
View
Most Expensive
B
MOH London
LG840641609 · Oct 26
£518 GBP
View
9 more retailers have this diamond
Prices start from £63 GBPSave up to £455 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
£63 GBP