Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 3545601791

Certificate GIA 3545601791

Diamond specifications and retailer prices

From €520 EUR
$583 USD
As of November 2, 2026
Save €916 EUR (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,949 EUR 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
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: €1,949 EUR|Low: €433 EUR|High: €1,949 EUR|Avg: €1,022 EUR
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€520 EUR
Retailer 10€606 EUR
Retailer 3€690 EUR
Retailer 5€731 EUR
Retailer 2€768 EUR
Retailer 6€884 EUR
Retailer 9€935 EUR
Retailer 7€959 EUR
Retailer 4€1,436 EUR
Retailer 11€1,788 EUR
NZ Jewellers€1,949 EUR

45 data points across 11 retailers

17 retailers€520 EUR to €1,436 EUR

B+
Cheapest Retailer
-
€520 EUR
$583 USD
Final sale: no returns
B+
Retailer 2
-
€563 EUR
$632 USD
View
B+
Retailer 3
-
€580 EUR
$650 USD
View
B+
Retailer 4
-
€586 EUR
$657 USD
View
B+
Retailer 5
-
€606 EUR
$680 USD
View
B+
Retailer 6
-
€606 EUR
$680 USD
View
B
Retailer 7
-
€650 EUR
$729 USD
View
B
Retailer 8
-
€690 EUR
$774 USD
View
B
Retailer 9
-
€731 EUR
$820 USD
View
B
Retailer 10
-
€768 EUR
£678 GBP
View
B
Retailer 11
-
€884 EUR
View
B
Retailer 12
-
€885 EUR
$993 USD
View
Retailer 13
-
€935 EUR
A$1,613 AUD
View
Price last confirmed 30 days ago
B
Retailer 14
-
€959 EUR
ZAR 17,384 ZAR
View
B
Retailer 15
-
€1,436 EUR
£1,268 GBP
View
Retailer 16
-
€1,788 EUR
CA$2,785 CAD
View
Price under review
Most Expensive
NZ Jewellers
902963e8-edb8-4d90-b627-dfc4491a045a · Nov 3
€1,949 EUR
$2,186 USD
View
Price under review
16 more retailers have this diamond
Prices start from €520 EURSave up to €916 EUR

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
€520 EUR