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 €113 EUR
$126 USD
As of November 2, 2026
Save €610 EUR (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €723 EUR 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 €113 to €723, a €610 spread on the same certified stone. MOH London lists it at €723. 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

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: Nov 2
Current: €723 EUR|Low: €110 EUR|High: €949 EUR|Avg: €338 EUR|-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€113 EUR
Retailer 5€131 EUR
Retailer 9€142 EUR
Retailer 6€149 EUR
Retailer 7€192 EUR
Retailer 10€201 EUR
Retailer 11€247 EUR
Retailer 8€263 EUR
Retailer 2€494 EUR
MOH London€723 EUR
Retailer 3€949 EUR

21 data points across 11 retailers

8 retailers€113 EUR to €723 EUR

A
Cheapest Retailer
-
€113 EUR
$126 USD
B+
Retailer 2
-
€131 EUR
$146 USD
View
B+
Retailer 3
-
€142 EUR
$159 USD
View
B+
Retailer 4
-
€149 EUR
$166 USD
View
B+
Retailer 5
-
€192 EUR
$215 USD
View
B+
Retailer 6
-
€263 EUR
CA$409 CAD
View
B
Retailer 7
-
€494 EUR
$552 USD
View
Most Expensive
B
MOH London
302950023 · Oct 29
€723 EUR
£636 GBP
View
7 more retailers have this diamond
Prices start from €113 EURSave up to €610 EUR

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
€113 EUR