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Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 3545601791

Certificate GIA 3545601791

Diamond specifications and retailer prices

From $815 CAD
$583 USD
As of November 2, 2026
Save $1,436 CAD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,055 CAD at NZ Jewellers · As of November 3, 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 J 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 3545601791. Listed at 17 retailers as of November 2, 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545601791
Dimensions7.82 × 4.05 × 2.39 mm
L/W Ratio1.93
Top View
7.82 mm4.05 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545601791
Side View
Table 55.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $3,055 CAD|Low: $679 CAD|High: $3,055 CAD|Avg: $1,602 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 8$815 CAD
Retailer 10$950 CAD
Retailer 3$1,082 CAD
Retailer 5$1,146 CAD
Retailer 2$1,203 CAD
Retailer 6$1,385 CAD
Retailer 9$1,465 CAD
Retailer 7$1,504 CAD
Retailer 4$2,250 CAD
Retailer 11$2,802 CAD
NZ Jewellers$3,055 CAD

45 data points across 11 retailers

17 retailers$815 CAD to $2,250 CAD

B+
Cheapest Retailer
-
$815 CAD
$583 USD
Final sale: no returns
B+
Retailer 2
-
$883 CAD
$632 USD
View
B+
Retailer 3
-
$908 CAD
$650 USD
View
B+
Retailer 4
-
$918 CAD
$657 USD
View
B+
Retailer 5
-
$950 CAD
$680 USD
View
B+
Retailer 6
-
$950 CAD
$680 USD
View
B
Retailer 7
-
$1,019 CAD
$729 USD
View
B
Retailer 8
-
$1,082 CAD
$774 USD
View
B
Retailer 9
-
$1,146 CAD
$820 USD
View
B
Retailer 10
-
$1,203 CAD
£678 GBP
View
B
Retailer 11
-
$1,385 CAD
€944 EUR
View
B
Retailer 12
-
$1,387 CAD
$993 USD
View
Retailer 13
-
$1,465 CAD
A$1,613 AUD
View
Price last confirmed 30 days ago
B
Retailer 14
-
$1,504 CAD
ZAR 17,384 ZAR
View
B
Retailer 15
-
$2,250 CAD
£1,268 GBP
View
Retailer 16
-
$2,802 CAD
View
Price under review
Most Expensive
NZ Jewellers
902963e8-edb8-4d90-b627-dfc4491a045a · Nov 3
$3,055 CAD
$2,186 USD
View
Price under review
16 more retailers have this diamond
Prices start from $815 CADSave up to $1,436 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.

B+
0.50ct Marquise
$815 CAD