Marquise|Lab Grown|GCAL

0.43ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • GCAL 303160024

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 303160024

Diamond specifications and retailer prices

From $123 USD
As of October 30, 2026
Save $592 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,410 USD at MOH London · As of October 29, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 303160024. Listed at 9 retailers as of October 29, 2026, with a 481% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 303160024
Dimensions7.83 × 3.93 × 2.42 mm
L/W Ratio1.99
Culet sizeNone
Top View
7.83 mm3.93 mm0.43 ctE / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL 303160024
Side View
Table 54.0%Crown 33°Girdle: ThickPavilion 40.2°Culet: NoneDepth 61.6%

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: $1,410 USD|Low: $120 USD|High: $1,439 USD|Avg: $379 USD|+75.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6$123 USD
Retailer 7$135 USD
Retailer 4$142 USD
Retailer 9$154 USD
Retailer 2$162 USD
Retailer 10$268 USD
Retailer 8$287 USD
Retailer 3$540 USD
Retailer 5$715 USD
MOH London$1,410 USD

19 data points across 10 retailers

9 retailers$123 USD to $715 USD

A
Cheapest Retailer
-
$123 USD
A
Retailer 2
-
$135 USD
View
A
Retailer 3
-
$142 USD
View
A
Retailer 4
-
$154 USD
View
A
Retailer 5
-
$162 USD
View
B+
Retailer 6
-
$287 USD
CA$399 CAD
View
B
Retailer 7
-
$540 USD
View
B
Retailer 8
-
$715 USD
View
Most Expensive
MOH London
303160024 · Oct 29
$1,410 USD
£1,110 GBP
View
Price under review
8 more retailers have this diamond
Prices start from $123 USDSave up to $592 USD

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
$123 USD