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Marquise|Lab Grown|IGI

0.40ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG768616865

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768616865

Diamond specifications and retailer prices

From £142 GBP
$190 USD
As of October 30, 2026
Save £634 GBP (82%) vs most expensive(unlock to see where)
22 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 LG768616865 or 768616865. Listed at 22 retailers as of October 30, 2026, with prices from £142 to £775, a £634 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 angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768616865
Dimensions7.51 × 3.88 × 2.39 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm3.88 mm0.40 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768616865
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.6%

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: £775 GBP|Low: £136 GBP|High: £785 GBP|Avg: £333 GBP
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 15£142 GBP
Retailer 7£158 GBP
Retailer 5£164 GBP
Retailer 3£175 GBP
Retailer 6£175 GBP
Retailer 8£235 GBP
Retailer 14£261 GBP
Retailer 16£291 GBP
Retailer 10£315 GBP
Retailer 13£342 GBP
Retailer 11£350 GBP
Retailer 2£357 GBP
Retailer 9£400 GBP
Retailer 12£504 GBP
Retailer 4£622 GBP
MOH London£775 GBP

44 data points across 16 retailers

22 retailers£142 GBP to £775 GBP

A
Cheapest Retailer
-
£142 GBP
$190 USD
A
Retailer 2
-
£158 GBP
$212 USD
View
Final sale: no returns
A
Retailer 3
-
£164 GBP
$220 USD
View
A
Retailer 4
-
£166 GBP
$223 USD
View
A
Retailer 5
-
£175 GBP
$235 USD
View
Retailer 6
-
£175 GBP
$235 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
£235 GBP
$315 USD
View
A
Retailer 8
-
£261 GBP
$350 USD
View
B+
Retailer 9
-
£291 GBP
$390 USD
View
B+
Retailer 10
-
£315 GBP
€402 EUR
View
B+
Retailer 11
-
£342 GBP
A$704 AUD
View
B+
Retailer 12
-
£350 GBP
ZAR 7,578 ZAR
View
B+
Retailer 13
-
£357 GBP
View
B+
Retailer 14
-
£394 GBP
$528 USD
View
B+
Retailer 15
-
£400 GBP
View
B+
Retailer 16
-
£504 GBP
A$1,038 AUD
View
B
Retailer 17
-
£542 GBP
CA$1,008 CAD
View
B
Retailer 18
-
£622 GBP
$834 USD
View
B
Retailer 19
-
£640 GBP
$857 USD
View
B
Retailer 20
-
£751 GBP
$1,006 USD
View
B
Retailer 21
-
£751 GBP
$1,006 USD
View
Most Expensive
B
MOH London
LG768616865 · Nov 1
£775 GBP
View
21 more retailers have this diamond
Prices start from £142 GBPSave up to £634 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
£142 GBP