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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1558995545

Certificate GIA 1558995545

Diamond specifications and retailer prices

From €468 EUR
HK$4,100 HKD
As of November 1, 2026
Save €826 EUR (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,757 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558995545. Listed at 16 retailers as of November 1, 2026, with a 177% 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558995545
Dimensions7.71 × 4.16 × 2.59 mm
L/W Ratio1.85
Key to symbols
Cloud, Crystal, Feather
Top View
7.71 mm4.16 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558995545
Side View
Table 54.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,757 EUR|Low: €456 EUR|High: €1,757 EUR|Avg: €741 EUR|+3.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 4€468 EUR
Retailer 3€517 EUR
Retailer 12€560 EUR
Retailer 15€566 EUR
Retailer 7€584 EUR
Retailer 13€604 EUR
Retailer 14€604 EUR
Retailer 11€646 EUR
Retailer 8€669 EUR
Retailer 5€673 EUR
Retailer 6€678 EUR
Retailer 2€689 EUR
Retailer 10€825 EUR
Retailer 9€1,294 EUR
NZ Jewellers€1,757 EUR

31 data points across 15 retailers

16 retailers€468 EUR to €1,294 EUR

A
Cheapest Retailer
-
€468 EUR
HK$4,100 HKD
A
Retailer 2
-
€517 EUR
$580 USD
View
Final sale: no returns
A
Retailer 3
-
€560 EUR
$628 USD
View
B+
Retailer 4
-
€566 EUR
$635 USD
View
Retailer 5
-
€584 EUR
SGD 885 SGD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€604 EUR
$677 USD
View
B+
Retailer 7
-
€604 EUR
$677 USD
View
B+
Retailer 8
-
€646 EUR
$725 USD
View
B+
Retailer 9
-
€669 EUR
£591 GBP
View
B+
Retailer 10
-
€673 EUR
$755 USD
View
B+
Retailer 11
-
€678 EUR
$760 USD
View
B+
Retailer 12
-
€689 EUR
£609 GBP
View
Retailer 13
-
€721 EUR
$809 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
€825 EUR
View
B
Retailer 15
-
€1,294 EUR
£1,143 GBP
View
Most Expensive
NZ Jewellers
0baf91a4-6fc7-42cc-8403-433606648c27 · Nov 3
€1,757 EUR
$1,971 USD
View
Price under review
15 more retailers have this diamond
Prices start from €468 EURSave up to €826 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.

A
0.50ct Marquise
€468 EUR