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Marquise|Lab Grown|GCAL

0.42ct E VVS2 Marquise Lab Grown Diamond

EX • E/VVS2 • GCAL 312310057

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 312310057

Diamond specifications and retailer prices

From £87 GBP
$116 USD
As of October 30, 2026
Save £424 GBP (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £991 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.42ct lab-grown marquise diamond

This 0.42ct 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 312310057. Listed at 9 retailers as of October 29, 2026, with a 490% 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

0.42
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 312310057
Dimensions7.36 × 4.10 × 2.45 mm
L/W Ratio1.80
Culet sizeNone
Top View
7.36 mm4.10 mm0.42 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 312310057
Side View
Table 61.0%Crown 34.5°Girdle: THN-THKPavilion 40.4°Culet: NoneDepth 59.8%

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: £991 GBP|Low: £84 GBP|High: £1,023 GBP|Avg: £290 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£87 GBP
Retailer 4£100 GBP
Retailer 7£114 GBP
Retailer 10£135 GBP
Retailer 8£153 GBP
Retailer 11£157 GBP
Retailer 3£201 GBP
Retailer 9£267 GBP
Retailer 2£380 GBP
Retailer 5£510 GBP
MOH London£991 GBP

21 data points across 11 retailers

9 retailers£87 GBP to £510 GBP

A
Cheapest Retailer
-
£87 GBP
$116 USD
A
Retailer 2
-
£100 GBP
$134 USD
View
A
Retailer 3
-
£114 GBP
$153 USD
View
A
Retailer 4
-
£135 GBP
$181 USD
View
A
Retailer 5
-
£153 GBP
$205 USD
View
B+
Retailer 6
-
£267 GBP
CA$497 CAD
View
B
Retailer 7
-
£380 GBP
$509 USD
View
B
Retailer 8
-
£510 GBP
$684 USD
View
Most Expensive
MOH London
312310057 · Oct 29
£991 GBP
View
Price under review
8 more retailers have this diamond
Prices start from £87 GBPSave up to £424 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
0.42ct Marquise
£87 GBP