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Marquise|Lab Grown|IGI

0.50ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG532257821

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG532257821

Diamond specifications and retailer prices

From $172 CAD
$123 USD
As of October 30, 2026
Save $588 CAD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,774 CAD at MOH London · As of October 26, 2026
View at MOH London

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532257821 or 532257821. Listed at 14 retailers as of October 30, 2026, with a 342% 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

0.50
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532257821
Dimensions8.32 × 4.17 × 2.46 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.32 mm4.17 mm0.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532257821
Side View
Table 59.5%Crown 32.4°Girdle: THN-THKPavilion 38.3°Culet: NoneDepth 59.0%

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: $1,774 CAD|Low: $135 CAD|High: $1,794 CAD|Avg: $526 CAD|-0.9%
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
October 30, 2026
Retailer 9$172 CAD
Retailer 5$191 CAD
Retailer 13$198 CAD
Retailer 3$226 CAD
Retailer 10$226 CAD
Retailer 2$391 CAD
Retailer 12$409 CAD
Retailer 6$439 CAD
Retailer 7$512 CAD
Retailer 4$529 CAD
Retailer 11$682 CAD
Retailer 8$760 CAD
MOH London$1,774 CAD

42 data points across 13 retailers

14 retailers$172 CAD to $760 CAD

A
Cheapest Retailer
-
$172 CAD
$123 USD
A
Retailer 2
-
$191 CAD
$137 USD
View
Final sale: no returns
A
Retailer 3
-
$198 CAD
$142 USD
View
A
Retailer 4
-
$226 CAD
$162 USD
View
A
Retailer 5
-
$226 CAD
$162 USD
View
B+
Retailer 6
-
$391 CAD
$280 USD
View
B+
Retailer 7
-
$409 CAD
$293 USD
View
B
Retailer 8
-
$439 CAD
£248 GBP
View
B
Retailer 9
-
$512 CAD
£289 GBP
View
B
Retailer 10
-
$529 CAD
$379 USD
View
B
Retailer 11
-
$590 CAD
HK$3,300 HKD
View
B
Retailer 12
-
$682 CAD
$488 USD
View
B
Retailer 13
-
$760 CAD
$544 USD
View
Most Expensive
MOH London
LG532257821 · Oct 26
$1,774 CAD
£1,000 GBP
View
Price under review
13 more retailers have this diamond
Prices start from $172 CADSave up to $588 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
0.50ct Marquise
$172 CAD