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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 2556768032

Certificate GIA 2556768032

Diamond specifications and retailer prices

From $1,067 NZD
HK$4,700 HKD
As of November 1, 2026
Save $1,533 NZD (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,450 NZD at NZ Jewellers · As of October 30, 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 2556768032. Listed at 22 retailers as of November 1, 2026, with a 144% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556768032
Dimensions8.56 × 4.04 × 2.45 mm
L/W Ratio2.12
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
8.56 mm4.04 mm0.50 ctD / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556768032
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.5%

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: $4,450 NZD|Low: $1,067 NZD|High: $4,450 NZD|Avg: $1,790 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 5$1,067 NZD
Retailer 2$1,075 NZD
Retailer 17$1,267 NZD
Retailer 7$1,309 NZD
Retailer 6$1,411 NZD
Retailer 3$1,419 NZD
Retailer 18$1,419 NZD
Retailer 8$1,439 NZD
Retailer 19$1,474 NZD
Retailer 4$1,638 NZD
Retailer 10$1,655 NZD
Retailer 9$1,664 NZD
Retailer 13$1,693 NZD
Retailer 11$1,721 NZD
Retailer 12$1,742 NZD
Retailer 15$2,008 NZD
Retailer 16$2,191 NZD
Retailer 14$2,600 NZD
NZ Jewellers$4,450 NZD

26 data points across 19 retailers

22 retailers$1,067 NZD to $2,600 NZD

A
Cheapest Retailer
-
$1,067 NZD
HK$4,700 HKD
A
Retailer 2
-
$1,075 NZD
₹57,718 INR
View
A
Retailer 3
-
$1,267 NZD
$714 USD
View
A
Retailer 4
-
$1,309 NZD
$738 USD
View
Final sale: no returns
A
Retailer 5
-
$1,341 NZD
A$1,163 AUD
View
A
Retailer 6
-
$1,411 NZD
$795 USD
View
A
Retailer 7
-
$1,419 NZD
$800 USD
View
B+
Retailer 8
-
$1,419 NZD
$800 USD
View
B+
Retailer 9
-
$1,439 NZD
$811 USD
View
A
Retailer 10
-
$1,474 NZD
$831 USD
View
B+
Retailer 11
-
$1,499 NZD
SGD 1,142 SGD
View
B+
Retailer 12
-
$1,638 NZD
$923 USD
View
B+
Retailer 13
-
$1,655 NZD
$933 USD
View
B+
Retailer 14
-
$1,664 NZD
$938 USD
View
B+
Retailer 15
-
$1,693 NZD
£751 GBP
View
B+
Retailer 16
-
$1,721 NZD
$970 USD
View
B+
Retailer 17
-
$1,742 NZD
£773 GBP
View
B+
Retailer 18
-
$2,008 NZD
€1,078 EUR
View
Retailer 19
-
$2,170 NZD
A$1,882 AUD
View
Price last confirmed 29 days ago
B+
Retailer 20
-
$2,191 NZD
ZAR 19,947 ZAR
View
B
Retailer 21
-
$2,600 NZD
£1,154 GBP
View
Most Expensive
NZ Jewellers
a2996ab4-2dd5-48d5-b50e-8c135cfd64fa · Oct 30
$4,450 NZD
$2,508 USD
View
Price under review
21 more retailers have this diamond
Prices start from $1,067 NZDSave up to $1,533 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
$1,067 NZD