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Marquise|Lab Grown|IGI

0.40ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG810613364

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG810613364

Diamond specifications and retailer prices

From £107 GBP
$143 USD
As of October 30, 2026
Save £514 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £621 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG810613364 or 810613364. Listed at 15 retailers as of October 29, 2026, with prices from £107 to £621, a £514 spread on the same certified stone. MOH London lists it at £621. 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 angle34.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810613364
Dimensions7.54 × 3.81 × 2.39 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.54 mm3.81 mm0.40 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810613364
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.7%

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: Oct 30
Current: £621 GBP|Low: £107 GBP|High: £673 GBP|Avg: £264 GBP|-7.7%
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
November 1, 2026
Retailer 11£107 GBP
Retailer 6£124 GBP
Retailer 12£132 GBP
Retailer 4£133 GBP
Retailer 7£153 GBP
Retailer 3£179 GBP
Retailer 10£209 GBP
Retailer 8£227 GBP
Retailer 13£232 GBP
Retailer 2£240 GBP
Retailer 14£297 GBP
Retailer 15£345 GBP
Retailer 5£365 GBP
Retailer 9£425 GBP
MOH London£621 GBP

24 data points across 15 retailers

15 retailers£107 GBP to £621 GBP

A
Cheapest Retailer
-
£107 GBP
$143 USD
A
Retailer 2
-
£124 GBP
$166 USD
View
A
Retailer 3
-
£132 GBP
$177 USD
View
Retailer 4
-
£133 GBP
$178 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£153 GBP
HK$1,600 HKD
View
A
Retailer 6
-
£179 GBP
$240 USD
View
A
Retailer 7
-
£209 GBP
$280 USD
View
A
Retailer 8
-
£227 GBP
View
A
Retailer 9
-
£232 GBP
€296 EUR
View
A
Retailer 10
-
£240 GBP
ZAR 5,198 ZAR
View
B+
Retailer 11
-
£297 GBP
$398 USD
View
B+
Retailer 12
-
£345 GBP
A$711 AUD
View
B+
Retailer 13
-
£365 GBP
SGD 661 SGD
View
B+
Retailer 14
-
£425 GBP
$569 USD
View
Most Expensive
B
MOH London
LG810613364 · Oct 29
£621 GBP
View
14 more retailers have this diamond
Prices start from £107 GBPSave up to £514 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
£107 GBP