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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 $746 SGD
$583 USD
As of November 2, 2026
Save $1,314 SGD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,796 SGD 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 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
Colour
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: $2,796 SGD|Low: $622 SGD|High: $2,796 SGD|Avg: $1,466 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8$746 SGD
Retailer 10$870 SGD
Retailer 3$990 SGD
Retailer 5$1,049 SGD
Retailer 4$1,092 SGD
Retailer 6$1,268 SGD
Retailer 9$1,341 SGD
Retailer 7$1,376 SGD
Retailer 2$2,059 SGD
Retailer 11$2,564 SGD
NZ Jewellers$2,796 SGD

44 data points across 11 retailers

17 retailers$746 SGD to $2,059 SGD

B+
Cheapest Retailer
-
$746 SGD
$583 USD
Final sale: no returns
B+
Retailer 2
-
$808 SGD
$632 USD
View
B+
Retailer 3
-
$831 SGD
$650 USD
View
B+
Retailer 4
-
$840 SGD
$657 USD
View
B+
Retailer 5
-
$870 SGD
$680 USD
View
B+
Retailer 6
-
$870 SGD
$680 USD
View
B
Retailer 7
-
$932 SGD
$729 USD
View
B
Retailer 8
-
$990 SGD
$774 USD
View
B
Retailer 9
-
$1,049 SGD
$820 USD
View
B
Retailer 10
-
$1,092 SGD
£672 GBP
View
B
Retailer 11
-
$1,268 SGD
€944 EUR
View
B
Retailer 12
-
$1,270 SGD
$993 USD
View
Retailer 13
-
$1,341 SGD
A$1,613 AUD
View
Price last confirmed 30 days ago
B
Retailer 14
-
$1,376 SGD
ZAR 17,384 ZAR
View
B
Retailer 15
-
$2,059 SGD
£1,268 GBP
View
Retailer 16
-
$2,564 SGD
CA$2,785 CAD
View
Price under review
Most Expensive
NZ Jewellers
902963e8-edb8-4d90-b627-dfc4491a045a · Oct 30
$2,796 SGD
$2,186 USD
View
Price under review
16 more retailers have this diamond
Prices start from $746 SGDSave up to $1,314 SGD

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
$746 SGD