Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 3545601791

Certificate GIA 3545601791

Diamond specifications and retailer prices

From $583 USD
As of November 2, 2026
Save $1,036 USD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,186 USD 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 October 29, 2026, with a 178% 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: $2,186 USD|Low: $486 USD|High: $2,186 USD|Avg: $1,147 USD
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$583 USD
Retailer 10$680 USD
Retailer 3$774 USD
Retailer 4$820 USD
Retailer 2$854 USD
Retailer 5$991 USD
Retailer 9$1,048 USD
Retailer 6$1,076 USD
Retailer 7$1,619 USD
Retailer 11$2,005 USD
NZ Jewellers$2,186 USD

45 data points across 11 retailers

17 retailers$583 USD to $1,619 USD

B+
Cheapest Retailer
-
$583 USD
Final sale: no returns
B+
Retailer 2
-
$632 USD
View
B+
Retailer 3
-
$650 USD
View
B+
Retailer 4
-
$657 USD
View
B+
Retailer 5
-
$680 USD
View
B+
Retailer 6
-
$680 USD
View
B
Retailer 7
-
$729 USD
View
B
Retailer 8
-
$774 USD
View
B
Retailer 9
-
$820 USD
View
B
Retailer 10
-
$854 USD
£672 GBP
View
B
Retailer 11
-
$991 USD
€944 EUR
View
B
Retailer 12
-
$993 USD
View
Retailer 13
-
$1,048 USD
A$1,613 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$1,076 USD
ZAR 17,384 ZAR
View
B
Retailer 15
-
$1,619 USD
£1,275 GBP
View
Retailer 16
-
$2,005 USD
CA$2,785 CAD
View
Price under review
Most Expensive
NZ Jewellers
902963e8-edb8-4d90-b627-dfc4491a045a · Oct 30
$2,186 USD
View
Price under review
16 more retailers have this diamond
Prices start from $583 USDSave up to $1,036 USD

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
$583 USD