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Marquise|Lab Grown|IGI

0.40ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG773621215

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG773621215

Diamond specifications and retailer prices

From £158 GBP
$212 USD
As of November 1, 2026
Save £617 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £775 GBP at MOH London · As of November 1, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG773621215 or 773621215. Listed at 16 retailers as of November 1, 2026, with prices from £158 to £775, a £617 spread on the same certified stone. MOH London lists it at £775. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.40
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773621215
Dimensions7.31 × 3.85 × 2.43 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.31 mm3.85 mm0.40 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773621215
Side View
Table 60.0%Crown 35.8°Girdle: MediumPavilion 41.2°Culet: NoneDepth 63.1%

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 1
Current: £775 GBP|Low: £152 GBP|High: £784 GBP|Avg: £349 GBP
MOH London
Retailer 2
Retailer 3
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 17
November 1, 2026
Retailer 7£158 GBP
Retailer 17£166 GBP
Retailer 13£235 GBP
Retailer 15£261 GBP
Retailer 8£273 GBP
Retailer 3£291 GBP
Retailer 12£320 GBP
Retailer 9£326 GBP
Retailer 16£350 GBP
Retailer 2£357 GBP
Retailer 5£394 GBP
Retailer 11£400 GBP
Retailer 4£504 GBP
Retailer 10£542 GBP
Retailer 14£640 GBP
Retailer 6£751 GBP
MOH London£775 GBP

22 data points across 17 retailers

16 retailers£158 GBP to £775 GBP

A
Cheapest Retailer
-
£158 GBP
$212 USD
Final sale: no returns
A
Retailer 2
-
£166 GBP
$223 USD
View
A
Retailer 3
-
£235 GBP
$315 USD
View
B+
Retailer 4
-
£261 GBP
$350 USD
View
B+
Retailer 5
-
£288 GBP
$386 USD
View
B+
Retailer 6
-
£291 GBP
$390 USD
View
Retailer 7
-
£326 GBP
A$671 AUD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
£350 GBP
ZAR 7,578 ZAR
View
B+
Retailer 9
-
£357 GBP
View
B+
Retailer 10
-
£394 GBP
$528 USD
View
B+
Retailer 11
-
£400 GBP
View
B
Retailer 12
-
£504 GBP
A$1,038 AUD
View
B
Retailer 13
-
£542 GBP
CA$1,008 CAD
View
B
Retailer 14
-
£640 GBP
$857 USD
View
B
Retailer 15
-
£751 GBP
$1,006 USD
View
Most Expensive
B
MOH London
LG773621215 · Nov 1
£775 GBP
View
15 more retailers have this diamond
Prices start from £158 GBPSave up to £617 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
£158 GBP