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Marquise|Lab Grown|GCAL

0.43ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • GCAL 311060056

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 311060056

Diamond specifications and retailer prices

From £104 GBP
$139 USD
As of October 30, 2026
Save £560 GBP (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £663 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.43ct lab-grown marquise diamond

This 0.43ct lab-grown marquise sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 311060056. Listed at 12 retailers as of October 30, 2026, with prices from £104 to £663, a £560 spread on the same certified stone. MOH London lists it at £663. 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

0.43
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle40.1°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 311060056
Dimensions7.36 × 4.17 × 2.43 mm
L/W Ratio1.76
Culet sizeNone
Top View
7.36 mm4.17 mm0.43 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 311060056
Side View
Table 60.0%Crown 33°Girdle: THN-THKPavilion 40.1°Culet: NoneDepth 58.3%

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: £663 GBP|Low: £102 GBP|High: £685 GBP|Avg: £285 GBP|-2.2%
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 13£104 GBP
Retailer 5£117 GBP
Retailer 12£120 GBP
Retailer 3£123 GBP
Retailer 8£128 GBP
Retailer 7£140 GBP
Retailer 6£187 GBP
Retailer 4£217 GBP
Retailer 9£284 GBP
Retailer 11£284 GBP
Retailer 15£323 GBP
Retailer 2£433 GBP
Retailer 10£457 GBP
Retailer 14£587 GBP
MOH London£663 GBP

24 data points across 15 retailers

12 retailers£104 GBP to £663 GBP

A
Cheapest Retailer
-
£104 GBP
$139 USD
A
Retailer 2
-
£117 GBP
$157 USD
View
A
Retailer 3
-
£120 GBP
$161 USD
View
A
Retailer 4
-
£123 GBP
$165 USD
View
A
Retailer 5
-
£128 GBP
$172 USD
View
B+
Retailer 6
-
£217 GBP
CA$403 CAD
View
B+
Retailer 7
-
£284 GBP
$380 USD
View
B+
Retailer 8
-
£284 GBP
$380 USD
View
B
Retailer 9
-
£433 GBP
$580 USD
View
B
Retailer 10
-
£457 GBP
$612 USD
View
B
Retailer 11
-
£587 GBP
$786 USD
View
Most Expensive
B
MOH London
311060056 · Nov 1
£663 GBP
View
11 more retailers have this diamond
Prices start from £104 GBPSave up to £560 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
0.43ct Marquise
£104 GBP