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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2546306199

Certificate GIA 2546306199

Diamond specifications and retailer prices

From $1,372 NZD
As of November 4, 2026
Save $1,852 NZD (57%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $5,529 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 2546306199. Listed at 27 retailers as of November 4, 2026, with a 135% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle40.5°
OriginNatural
Grading LabGIA
CertificateGIA 2546306199
Dimensions7.92 × 4.07 × 2.59 mm
L/W Ratio1.95
Top View
7.92 mm4.07 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546306199
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 40.5°Culet: NoneDepth 63.6%

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: $5,529 NZD|Low: $1,372 NZD|High: $5,529 NZD|Avg: $2,376 NZD
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
November 6, 2026
Retailer 11$1,372 NZD
Retailer 7$1,539 NZD
Retailer 3$1,592 NZD
Retailer 4$1,597 NZD
Retailer 13$1,658 NZD
Retailer 5$1,843 NZD
Retailer 10$1,877 NZD
Retailer 6$2,046 NZD
Retailer 2$2,466 NZD
Retailer 12$2,651 NZD
Retailer 8$2,720 NZD
Retailer 9$3,223 NZD
NZ Jewellers$5,529 NZD

45 data points across 13 retailers

27 retailers$1,372 NZD to $3,223 NZD

A
Cheapest Retailer
-
$1,372 NZD
Final sale: no returns
B+
Retailer 2
-
$1,476 NZD
View
B+
Retailer 3
-
$1,539 NZD
View
B+
Retailer 4
-
$1,567 NZD
View
B+
Retailer 5
-
$1,583 NZD
View
B+
Retailer 6
-
$1,592 NZD
View
B+
Retailer 7
-
$1,597 NZD
View
Retailer 8
-
$1,597 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$1,597 NZD
View
B+
Retailer 10
-
$1,615 NZD
View
B+
Retailer 11
-
$1,658 NZD
View
B+
Retailer 12
-
$1,775 NZD
View
B+
Retailer 13
-
$1,843 NZD
View
B
Retailer 14
-
$1,877 NZD
View
B+
Retailer 15
-
$1,957 NZD
View
B+
Retailer 16
-
$1,957 NZD
View
B+
Retailer 17
-
$1,982 NZD
View
B+
Retailer 18
-
$2,010 NZD
View
B+
Retailer 19
-
$2,046 NZD
View
B
Retailer 20
-
$2,174 NZD
View
B
Retailer 21
-
$2,334 NZD
View
B
Retailer 22
-
$2,466 NZD
View
Retailer 23
-
$2,651 NZD
View
Price last confirmed 32 days ago
B
Retailer 24
-
$2,720 NZD
View
B
Retailer 25
-
$2,852 NZD
View
B
Retailer 26
-
$3,223 NZD
View
Most Expensive
NZ Jewellers
28f8e5c3-ca23-4b8a-a260-8f98ca41cfbc · Nov 5
$5,529 NZD
$3,108 USD
View
Price under review
26 more retailers have this diamond
Prices start from $1,372 NZDSave up to $1,852 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
$1,372 NZD