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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7568189493

Certificate GIA 7568189493

Diamond specifications and retailer prices

From $1,067 NZD
HK$4,700 HKD
As of November 1, 2026
Save $1,585 NZD (60%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,535 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 7568189493. Listed at 21 retailers as of October 26, 2026, with a 148% 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 7568189493
Dimensions8.55 × 4.06 × 2.49 mm
L/W Ratio2.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
8.55 mm4.06 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7568189493
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.3%

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: $1,775 NZD|Low: $1,067 NZD|High: $2,681 NZD|Avg: $1,740 NZD|-1.3%
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
November 2, 2026
Retailer 5$1,067 NZD
Retailer 9$1,290 NZD
Retailer 12$1,332 NZD
Retailer 11$1,340 NZD
Retailer 13$1,466 NZD
Retailer 4$1,501 NZD
Retailer 6$1,726 NZD
Retailer 2$1,739 NZD
Retailer 1$1,775 NZD
Retailer 7$2,044 NZD
Retailer 3$2,174 NZD
Retailer 8$2,232 NZD
Retailer 10$2,652 NZD

38 data points across 13 retailers

21 retailers$1,067 NZD to $2,652 NZD

A
Cheapest Retailer
-
$1,067 NZD
HK$4,700 HKD
A
Retailer 2
-
$1,290 NZD
$727 USD
View
A
Retailer 3
-
$1,332 NZD
$751 USD
View
Final sale: no returns
A
Retailer 4
-
$1,340 NZD
$755 USD
View
B+
Retailer 5
-
$1,446 NZD
$815 USD
View
B+
Retailer 6
-
$1,446 NZD
$815 USD
View
B+
Retailer 7
-
$1,466 NZD
$826 USD
View
B+
Retailer 8
-
$1,499 NZD
SGD 1,142 SGD
View
B+
Retailer 9
-
$1,501 NZD
$846 USD
View
B+
Retailer 10
-
$1,668 NZD
$940 USD
View
B+
Retailer 11
-
$1,682 NZD
$948 USD
View
B+
Retailer 12
-
$1,726 NZD
£766 GBP
View
B+
Retailer 13
-
$1,739 NZD
$980 USD
View
B+
Retailer 14
-
$1,775 NZD
£788 GBP
View
B
Retailer 15
-
$1,924 NZD
A$1,668 AUD
View
B+
Retailer 16
-
$1,942 NZD
$1,095 USD
View
B+
Retailer 17
-
$2,044 NZD
€1,097 EUR
View
Retailer 18
-
$2,174 NZD
A$1,885 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$2,232 NZD
ZAR 20,324 ZAR
View
B
Retailer 20
-
$2,652 NZD
£1,177 GBP
View
Most Expensive
NZ Jewellers
cbf7951b-ab4b-429a-bd5d-a04bbfbd6413 · Oct 30
$4,535 NZD
$2,556 USD
View
Price under review
20 more retailers have this diamond
Prices start from $1,067 NZDSave up to $1,585 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