Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 3545398580

Certificate GIA 3545398580

Diamond specifications and retailer prices

From €666 EUR
As of November 4, 2026
Save €903 EUR (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €2,689 EUR at NZ Jewellers · As of November 5, 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 E 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 3545398580. Listed at 23 retailers as of November 2, 2026, with a 136% 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3545398580
Dimensions8.10 × 4.15 × 2.57 mm
L/W Ratio1.95
Top View
8.10 mm4.15 mm0.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545398580
Side View
Table 58.0%CrownGirdle: VTN-THKPavilion 40.6°Culet: NoneDepth 62.0%

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 4
Current: €2,689 EUR|Low: €666 EUR|High: €2,689 EUR|Avg: €1,208 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9€666 EUR
Retailer 5€747 EUR
Retailer 3€777 EUR
Retailer 11€806 EUR
Retailer 8€922 EUR
Retailer 4€993 EUR
Retailer 2€1,200 EUR
Retailer 10€1,289 EUR
Retailer 6€1,323 EUR
Retailer 7€1,570 EUR
NZ Jewellers€2,689 EUR

45 data points across 11 retailers

23 retailers€666 EUR to €1,570 EUR

A
Cheapest Retailer
-
€666 EUR
Final sale: no returns
A
Retailer 2
-
€717 EUR
View
A
Retailer 3
-
€747 EUR
View
B+
Retailer 4
-
€763 EUR
View
B+
Retailer 5
-
€771 EUR
View
B+
Retailer 6
-
€777 EUR
View
Retailer 7
-
€777 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€779 EUR
View
B+
Retailer 9
-
€786 EUR
View
B+
Retailer 10
-
€806 EUR
View
B+
Retailer 11
-
€867 EUR
View
B+
Retailer 12
-
€896 EUR
View
B
Retailer 13
-
€922 EUR
View
B+
Retailer 14
-
€963 EUR
View
B+
Retailer 15
-
€993 EUR
View
B
Retailer 16
-
€1,057 EUR
View
B
Retailer 17
-
€1,141 EUR
View
B
Retailer 18
-
€1,200 EUR
View
Retailer 19
-
€1,289 EUR
View
Price last confirmed 33 days ago
B
Retailer 20
-
€1,323 EUR
View
B
Retailer 21
-
€1,386 EUR
View
B
Retailer 22
-
€1,570 EUR
View
Most Expensive
NZ Jewellers
ecb8af5a-ce34-49cf-9bbe-67104c100532 · Nov 5
€2,689 EUR
$3,018 USD
View
Price under review
22 more retailers have this diamond
Prices start from €666 EURSave up to €903 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
€666 EUR