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Marquise|Lab Grown|GCAL

0.38ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • GCAL 302540025

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 302540025

Diamond specifications and retailer prices

From £63 GBP
$84 USD
As of October 27, 2026
Save £571 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £634 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.38ct lab-grown marquise diamond

This 0.38ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 302540025. Listed at 11 retailers as of October 26, 2026, with prices from £63 to £634, a £571 spread on the same certified stone. MOH London lists it at £634. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.38
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 302540025
Dimensions7.34 × 3.82 × 2.31 mm
L/W Ratio1.92
Culet sizeNone
Top View
7.34 mm3.82 mm0.38 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 302540025
Side View
Table 58.0%Crown 34.7°Girdle: THN-VTKPavilion 40.4°Culet: NoneDepth 60.5%

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 27
Current: £634 GBP|Low: £63 GBP|High: £661 GBP|Avg: £279 GBP|-3.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 28, 2026
Retailer 9£63 GBP
Retailer 5£73 GBP
Retailer 11£91 GBP
Retailer 3£125 GBP
Retailer 10£144 GBP
Retailer 6£195 GBP
Retailer 4£233 GBP
Retailer 7£233 GBP
Retailer 2£277 GBP
Retailer 8£410 GBP
MOH London£634 GBP

19 data points across 11 retailers

11 retailers£63 GBP to £634 GBP

A
Cheapest Retailer
-
£63 GBP
$84 USD
A
Retailer 2
-
£73 GBP
$97 USD
View
A
Retailer 3
-
£83 GBP
$111 USD
View
A
Retailer 4
-
£91 GBP
$121 USD
View
A
Retailer 5
-
£144 GBP
CA$266 CAD
View
B+
Retailer 6
-
£195 GBP
$260 USD
View
B+
Retailer 7
-
£233 GBP
$310 USD
View
B+
Retailer 8
-
£233 GBP
$310 USD
View
B+
Retailer 9
-
£277 GBP
$369 USD
View
B
Retailer 10
-
£410 GBP
$546 USD
View
Most Expensive
B
MOH London
302540025 · Oct 26
£634 GBP
View
10 more retailers have this diamond
Prices start from £63 GBPSave up to £571 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
0.38ct Marquise
£63 GBP