Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 3545601791

Certificate GIA 3545601791

Diamond specifications and retailer prices

From €522 EUR
$583 USD
As of November 2, 2026
Save €919 EUR (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,955 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
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: €1,955 EUR|Low: €435 EUR|High: €1,955 EUR|Avg: €1,026 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€522 EUR
Retailer 10€608 EUR
Retailer 3€692 EUR
Retailer 5€734 EUR
Retailer 2€770 EUR
Retailer 6€887 EUR
Retailer 9€938 EUR
Retailer 7€963 EUR
Retailer 4€1,441 EUR
Retailer 11€1,793 EUR
NZ Jewellers€1,955 EUR

45 data points across 11 retailers

17 retailers€522 EUR to €1,441 EUR

B+
Cheapest Retailer
-
€522 EUR
$583 USD
Final sale: no returns
B+
Retailer 2
-
€565 EUR
$632 USD
View
B+
Retailer 3
-
€581 EUR
$650 USD
View
B+
Retailer 4
-
€588 EUR
$657 USD
View
B+
Retailer 5
-
€608 EUR
$680 USD
View
B+
Retailer 6
-
€608 EUR
$680 USD
View
B
Retailer 7
-
€652 EUR
$729 USD
View
B
Retailer 8
-
€692 EUR
$774 USD
View
B
Retailer 9
-
€734 EUR
$820 USD
View
B
Retailer 10
-
€770 EUR
£678 GBP
View
B
Retailer 11
-
€887 EUR
View
B
Retailer 12
-
€888 EUR
$993 USD
View
Retailer 13
-
€938 EUR
A$1,613 AUD
View
Price last confirmed 30 days ago
B
Retailer 14
-
€963 EUR
ZAR 17,384 ZAR
View
B
Retailer 15
-
€1,441 EUR
£1,268 GBP
View
Retailer 16
-
€1,793 EUR
CA$2,785 CAD
View
Price under review
Most Expensive
NZ Jewellers
902963e8-edb8-4d90-b627-dfc4491a045a · Nov 3
€1,955 EUR
$2,186 USD
View
Price under review
16 more retailers have this diamond
Prices start from €522 EURSave up to €919 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
€522 EUR