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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 5241051030

Certificate GIA 5241051030

Diamond specifications and retailer prices

From $823 CAD
HK$4,600 HKD
As of November 1, 2026
Save $1,449 CAD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,099 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural 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 stated by the retailer rather than the lab and certified by GIA 5241051030. Listed at 19 retailers as of November 1, 2026, with a 176% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241051030
Dimensions8.20 × 4.20 × 2.46 mm
L/W Ratio1.95
Girdle conditionFaceted
Top View
8.20 mm4.20 mm0.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5241051030
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.6%

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: Nov 1
Current: $3,099 CAD|Low: $823 CAD|High: $3,183 CAD|Avg: $1,301 CAD|-2.6%
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 9$823 CAD
Retailer 18$859 CAD
Retailer 15$907 CAD
Retailer 10$908 CAD
Retailer 14$974 CAD
Retailer 17$985 CAD
Retailer 8$1,019 CAD
Retailer 3$1,021 CAD
Retailer 12$1,094 CAD
Retailer 2$1,208 CAD
Retailer 7$1,237 CAD
Retailer 5$1,239 CAD
Retailer 6$1,290 CAD
Retailer 11$1,334 CAD
Retailer 4$1,444 CAD
Retailer 16$1,525 CAD
Retailer 13$2,272 CAD
NZ Jewellers$3,099 CAD

21 data points across 18 retailers

19 retailers$823 CAD to $2,272 CAD

A
Cheapest Retailer
-
$823 CAD
HK$4,600 HKD
A
Retailer 2
-
$859 CAD
$615 USD
View
A
Retailer 3
-
$907 CAD
$649 USD
View
Final sale: no returns
A
Retailer 4
-
$908 CAD
$650 USD
View
A
Retailer 5
-
$974 CAD
€664 EUR
View
A
Retailer 6
-
$985 CAD
$705 USD
View
A
Retailer 7
-
$1,019 CAD
SGD 985 SGD
View
A
Retailer 8
-
$1,021 CAD
$731 USD
View
B+
Retailer 9
-
$1,094 CAD
£617 GBP
View
B+
Retailer 10
-
$1,208 CAD
£680 GBP
View
B+
Retailer 11
-
$1,237 CAD
$885 USD
View
B+
Retailer 12
-
$1,239 CAD
$887 USD
View
B+
Retailer 13
-
$1,290 CAD
$923 USD
View
B+
Retailer 14
-
$1,334 CAD
€909 EUR
View
Retailer 15
-
$1,444 CAD
$1,033 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$1,525 CAD
ZAR 17,634 ZAR
View
Retailer 17
-
$1,547 CAD
A$1,703 AUD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$2,272 CAD
£1,280 GBP
View
Most Expensive
NZ Jewellers
0bce4cbb-cd49-426c-a1b5-9304e6c395b5 · Oct 30
$3,099 CAD
$2,218 USD
View
Price under review
18 more retailers have this diamond
Prices start from $823 CADSave up to $1,449 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
$823 CAD