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Marquise|Lab Grown|GCAL

0.40ct E VVS2 Marquise Lab Grown Diamond

EX • E/VVS2 • GCAL 311790047

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 311790047

Diamond specifications and retailer prices

From £83 GBP
$111 USD
As of October 30, 2026
Save £416 GBP (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £960 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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by GCAL 311790047. Listed at 9 retailers as of October 29, 2026, with a 499% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.40
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.5°
Pavilion angle40°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 311790047
Dimensions8.09 × 3.76 × 2.23 mm
L/W Ratio2.15
Culet sizeNone
Top View
8.09 mm3.76 mm0.40 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 311790047
Side View
Table 62.0%Crown 33.5°Girdle: THN-THKPavilion 40°Culet: NoneDepth 59.4%

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: £960 GBP|Low: £82 GBP|High: £991 GBP|Avg: £281 GBP|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6£83 GBP
Retailer 5£97 GBP
Retailer 2£110 GBP
Retailer 10£131 GBP
Retailer 8£146 GBP
Retailer 11£152 GBP
Retailer 3£193 GBP
Retailer 9£256 GBP
Retailer 4£368 GBP
Retailer 7£500 GBP
MOH London£960 GBP

19 data points across 11 retailers

9 retailers£83 GBP to £500 GBP

A
Cheapest Retailer
-
£83 GBP
$111 USD
A
Retailer 2
-
£97 GBP
$129 USD
View
A
Retailer 3
-
£110 GBP
$147 USD
View
A
Retailer 4
-
£131 GBP
$174 USD
View
A
Retailer 5
-
£146 GBP
$195 USD
View
B+
Retailer 6
-
£256 GBP
CA$473 CAD
View
B
Retailer 7
-
£368 GBP
$490 USD
View
B
Retailer 8
-
£500 GBP
$665 USD
View
Most Expensive
MOH London
311790047 · Oct 29
£960 GBP
View
Price under review
8 more retailers have this diamond
Prices start from £83 GBPSave up to £416 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
£83 GBP