Marquise|Lab Grown|GCAL

0.45ct F SI2 Marquise Lab Grown Diamond

VG • F/SI2 • GCAL 302950023

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 302950023

Diamond specifications and retailer prices

From $176 CAD
$126 USD
As of November 2, 2026
Save $952 CAD (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,128 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.45ct lab-grown marquise diamond

This 0.45ct lab-grown marquise sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GCAL 302950023. Listed at 8 retailers as of October 29, 2026, with prices from $176 to $1,128, a $952 spread on the same certified stone. MOH London lists it at $1,128. 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

0.45
Carat
F
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 302950023
Dimensions8.21 × 3.93 × 2.42 mm
L/W Ratio2.09
Culet sizeNone
Top View
8.21 mm3.93 mm0.45 ctF / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGCAL 302950023
Side View
Table 58.0%Crown 33.5°Girdle: ThickPavilion 41.1°Culet: NoneDepth 61.6%

Caratlytics Score

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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: Nov 2
Current: $1,128 CAD|Low: $172 CAD|High: $1,481 CAD|Avg: $528 CAD|-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 4$176 CAD
Retailer 5$204 CAD
Retailer 9$222 CAD
Retailer 6$232 CAD
Retailer 7$300 CAD
Retailer 10$313 CAD
Retailer 11$385 CAD
Retailer 8$411 CAD
Retailer 2$771 CAD
MOH London$1,128 CAD
Retailer 3$1,481 CAD

21 data points across 11 retailers

8 retailers$176 CAD to $1,128 CAD

A
Cheapest Retailer
-
$176 CAD
$126 USD
B+
Retailer 2
-
$204 CAD
$146 USD
View
B+
Retailer 3
-
$222 CAD
$159 USD
View
B+
Retailer 4
-
$232 CAD
$166 USD
View
B+
Retailer 5
-
$300 CAD
$215 USD
View
B+
Retailer 6
-
$411 CAD
View
B
Retailer 7
-
$771 CAD
$552 USD
View
Most Expensive
B
MOH London
302950023 · Oct 29
$1,128 CAD
£636 GBP
View
7 more retailers have this diamond
Prices start from $176 CADSave up to $952 CAD

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
0.45ct Marquise
$176 CAD