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Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 1548044206

Certificate GIA 1548044206

Diamond specifications and retailer prices

From $1,123 NZD
$632 USD
As of November 1, 2026
Save $1,739 NZD (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,885 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548044206. Listed at 14 retailers as of November 1, 2026, with a 155% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548044206
Dimensions8.32 × 4.08 × 2.53 mm
L/W Ratio2.04
Key to symbols
Feather, Cloud
Top View
8.32 mm4.08 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1548044206
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,885 NZD|Low: $864 NZD|High: $3,885 NZD|Avg: $1,735 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
November 2, 2026
Retailer 15$864 NZD
Retailer 3$1,123 NZD
Retailer 8$1,145 NZD
Retailer 6$1,155 NZD
Retailer 4$1,209 NZD
Retailer 16$1,296 NZD
Retailer 14$1,376 NZD
Retailer 7$1,425 NZD
Retailer 12$1,457 NZD
Retailer 5$1,485 NZD
Retailer 10$1,517 NZD
Retailer 9$1,659 NZD
Retailer 11$1,912 NZD
Retailer 2$2,862 NZD
Retailer 13$3,563 NZD
NZ Jewellers$3,885 NZD

23 data points across 16 retailers

14 retailers$1,123 NZD to $2,862 NZD

B+
Cheapest Retailer
-
$1,123 NZD
$632 USD
B+
Retailer 2
-
$1,155 NZD
$650 USD
View
B+
Retailer 3
-
$1,209 NZD
$680 USD
View
B
Retailer 4
-
$1,296 NZD
$729 USD
View
B
Retailer 5
-
$1,376 NZD
$774 USD
View
B
Retailer 6
-
$1,425 NZD
$802 USD
View
B
Retailer 7
-
$1,457 NZD
$820 USD
View
B
Retailer 8
-
$1,485 NZD
$835 USD
View
B
Retailer 9
-
$1,517 NZD
£672 GBP
View
B
Retailer 10
-
$1,659 NZD
€889 EUR
View
B
Retailer 11
-
$1,912 NZD
ZAR 17,384 ZAR
View
B
Retailer 12
-
$2,862 NZD
£1,268 GBP
View
Retailer 13
-
$3,563 NZD
CA$2,785 CAD
View
Price under review
Most Expensive
NZ Jewellers
92e177b9-a25f-4889-a9b8-e24b7bbe50ef · Oct 30
$3,885 NZD
$2,186 USD
View
Price under review
13 more retailers have this diamond
Prices start from $1,123 NZDSave up to $1,739 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.

B+
0.50ct Marquise
$1,123 NZD