Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2556419943

Certificate GIA 2556419943

Diamond specifications and retailer prices

From €445 EUR
As of November 6, 2026
Save €1,454 EUR (77%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €1,899 EUR at NZ Jewellers · As of October 17, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556419943. Listed at 24 retailers as of November 5, 2026, with a 327% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556419943
Dimensions7.48 × 4.19 × 2.73 mm
L/W Ratio1.79
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural
Top View
7.48 mm4.19 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556419943
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.1%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: €445 EUR|Low: €445 EUR|High: €1,412 EUR|Avg: €789 EUR|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1€445 EUR
Retailer 10€558 EUR
Retailer 7€605 EUR
Retailer 8€609 EUR
Retailer 4€739 EUR
Retailer 9€770 EUR
Retailer 3€857 EUR
Retailer 2€910 EUR
Retailer 5€934 EUR
Retailer 6€1,396 EUR

37 data points across 10 retailers

24 retailers€445 EUR to €1,899 EUR

A
Cheapest Retailer
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€445 EUR
A
Retailer 2
-
€558 EUR
View
Final sale: no returns
A
Retailer 3
-
€573 EUR
View
Retailer 4
-
€605 EUR
View
Price last confirmed 39 days ago
Retailer 5
-
€605 EUR
View
Price last confirmed 8 days ago
Retailer 6
-
€605 EUR
View
Price last confirmed 19 days ago
Retailer 7
-
€605 EUR
View
Price last confirmed 8 days ago
Retailer 8
-
€605 EUR
View
Price last confirmed 21 days ago
A
Retailer 9
-
€609 EUR
View
Retailer 10
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€629 EUR
View
Price last confirmed 20 days ago
Retailer 11
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€699 EUR
View
Price last confirmed 38 days ago
Retailer 12
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€699 EUR
View
Price last confirmed 28 days ago
B+
Retailer 13
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€724 EUR
View
B+
Retailer 14
-
€739 EUR
View
B+
Retailer 15
-
€770 EUR
View
Retailer 16
-
€783 EUR
View
Price last confirmed 41 days ago
B+
Retailer 17
-
€831 EUR
View
B+
Retailer 18
-
€857 EUR
View
Retailer 19
-
€910 EUR
View
Price last confirmed 33 days ago
B+
Retailer 20
-
€934 EUR
View
B
Retailer 21
-
€1,396 EUR
View
Retailer 22
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€1,899 EUR
View
Price last confirmed 39 days ago
B
Retailer 23
-
€1,899 EUR
View
Most Expensive
NZ Jewellers
4efd96dc-3d7a-453b-89aa-88280ee104e8 · Oct 17
€1,899 EUR
$2,120 USD
View
Price last confirmed 20 days ago
23 more retailers have this diamond
Prices start from €445 EURSave up to €1,454 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
€445 EUR