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Marquise|Lab Grown|GCAL

0.42ct F VS2 Marquise Lab Grown Diamond

VG • F/VS2 • GCAL 301740027

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 301740027

Diamond specifications and retailer prices

From £102 GBP
$137 USD
As of October 30, 2026
Save £552 GBP (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £654 GBP at MOH London · As of October 26, 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 F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by GCAL 301740027. Listed at 9 retailers as of October 26, 2026, with prices from £102 to £654, a £552 spread on the same certified stone. MOH London lists it at £654. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
F
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 301740027
Dimensions7.42 × 4.07 × 2.44 mm
L/W Ratio1.82
Culet sizeNone
Top View
7.42 mm4.07 mm0.42 ctF / VS2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL 301740027
Side View
Table 63.0%Crown 33.6°Girdle: THN-THKPavilion 41.1°Culet: NoneDepth 60.0%

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: £654 GBP|Low: £99 GBP|High: £673 GBP|Avg: £276 GBP|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 4£102 GBP
Retailer 9£113 GBP
Retailer 5£119 GBP
Retailer 6£127 GBP
Retailer 7£149 GBP
Retailer 10£201 GBP
Retailer 8£209 GBP
Retailer 2£449 GBP
Retailer 3£579 GBP
MOH London£654 GBP

19 data points across 10 retailers

9 retailers£102 GBP to £654 GBP

A
Cheapest Retailer
-
£102 GBP
$137 USD
A
Retailer 2
-
£113 GBP
$152 USD
View
A
Retailer 3
-
£119 GBP
$159 USD
View
A
Retailer 4
-
£127 GBP
$170 USD
View
B+
Retailer 5
-
£149 GBP
$200 USD
View
B+
Retailer 6
-
£209 GBP
CA$389 CAD
View
B
Retailer 7
-
£449 GBP
$601 USD
View
B
Retailer 8
-
£579 GBP
$776 USD
View
Most Expensive
B
MOH London
301740027 · Oct 26
£654 GBP
View
8 more retailers have this diamond
Prices start from £102 GBPSave up to £552 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
£102 GBP