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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7551203000

Certificate GIA 7551203000

Diamond specifications and retailer prices

From €536 EUR
HK$4,700 HKD
As of November 1, 2026
Save €767 EUR (59%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €2,336 EUR at NZ Jewellers · As of September 20, 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 7551203000. Listed at 21 retailers as of November 1, 2026, with a 143% 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551203000
Dimensions8.14 × 4.24 × 2.50 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Knot
Top View
8.14 mm4.24 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551203000
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.9%

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: €539 EUR|Low: €509 EUR|High: €1,840 EUR|Avg: €950 EUR|-2.0%
Retailer 1
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 2, 2026
Retailer 13€536 EUR
Retailer 1€539 EUR
Retailer 12€635 EUR
Retailer 14€657 EUR
Retailer 2€722 EUR
Retailer 5€752 EUR
Retailer 4€830 EUR
Retailer 8€849 EUR
Retailer 15€860 EUR
Retailer 3€960 EUR
Retailer 10€1,007 EUR
Retailer 6€1,070 EUR
Retailer 11€1,099 EUR
Retailer 9€1,303 EUR
Retailer 7€1,744 EUR

33 data points across 15 retailers

21 retailers€536 EUR to €1,303 EUR

A
Cheapest Retailer
-
€536 EUR
HK$4,700 HKD
A
Retailer 2
-
€539 EUR
₹57,623 INR
View
A
Retailer 3
-
€635 EUR
$712 USD
View
A
Retailer 4
-
€657 EUR
$737 USD
View
Final sale: no returns
A
Retailer 5
-
€673 EUR
A$1,161 AUD
View
Retailer 6
-
€699 EUR
$784 USD
View
Price last confirmed 46 days ago
Retailer 7
-
€711 EUR
$798 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
€722 EUR
$810 USD
View
Retailer 9
-
€744 EUR
$835 USD
View
Price last confirmed 41 days ago
B+
Retailer 10
-
€752 EUR
SGD 1,140 SGD
View
B+
Retailer 11
-
€830 EUR
$931 USD
View
B+
Retailer 12
-
€849 EUR
£750 GBP
View
Retailer 13
-
€859 EUR
$964 USD
View
Price last confirmed 41 days ago
B+
Retailer 14
-
€860 EUR
$965 USD
View
B+
Retailer 15
-
€960 EUR
$1,076 USD
View
B+
Retailer 16
-
€1,007 EUR
A$1,738 AUD
View
B+
Retailer 17
-
€1,007 EUR
View
Retailer 18
-
€1,070 EUR
A$1,847 AUD
View
Price last confirmed 29 days ago
B+
Retailer 19
-
€1,099 EUR
ZAR 19,909 ZAR
View
B
Retailer 20
-
€1,303 EUR
£1,151 GBP
View
Most Expensive
NZ Jewellers
4132ea8f-779b-4abd-90d9-002858131449 · Sep 20
€2,336 EUR
$2,620 USD
View
Price under review
20 more retailers have this diamond
Prices start from €536 EURSave up to €767 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
€536 EUR