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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 3545398580

Certificate GIA 3545398580

Diamond specifications and retailer prices

From $1,331 NZD
As of November 4, 2026
Save $1,804 NZD (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,369 NZD 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: $5,369 NZD|Low: $1,331 NZD|High: $5,369 NZD|Avg: $2,411 NZD
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$1,331 NZD
Retailer 5$1,491 NZD
Retailer 3$1,551 NZD
Retailer 11$1,610 NZD
Retailer 8$1,841 NZD
Retailer 4$1,983 NZD
Retailer 2$2,396 NZD
Retailer 10$2,574 NZD
Retailer 6$2,642 NZD
Retailer 7$3,134 NZD
NZ Jewellers$5,369 NZD

45 data points across 11 retailers

23 retailers$1,331 NZD to $3,134 NZD

A
Cheapest Retailer
-
$1,331 NZD
Final sale: no returns
A
Retailer 2
-
$1,432 NZD
View
A
Retailer 3
-
$1,491 NZD
View
B+
Retailer 4
-
$1,523 NZD
View
B+
Retailer 5
-
$1,539 NZD
View
B+
Retailer 6
-
$1,551 NZD
View
Retailer 7
-
$1,551 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,555 NZD
View
B+
Retailer 9
-
$1,569 NZD
View
B+
Retailer 10
-
$1,610 NZD
View
B+
Retailer 11
-
$1,731 NZD
View
B+
Retailer 12
-
$1,790 NZD
View
B
Retailer 13
-
$1,841 NZD
View
B+
Retailer 14
-
$1,923 NZD
View
B+
Retailer 15
-
$1,983 NZD
View
B
Retailer 16
-
$2,110 NZD
View
B
Retailer 17
-
$2,279 NZD
View
B
Retailer 18
-
$2,396 NZD
View
Retailer 19
-
$2,574 NZD
View
Price last confirmed 33 days ago
B
Retailer 20
-
$2,642 NZD
View
B
Retailer 21
-
$2,768 NZD
View
B
Retailer 22
-
$3,134 NZD
View
Most Expensive
NZ Jewellers
ecb8af5a-ce34-49cf-9bbe-67104c100532 · Nov 5
$5,369 NZD
$3,018 USD
View
Price under review
22 more retailers have this diamond
Prices start from $1,331 NZDSave up to $1,804 NZD

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
$1,331 NZD