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Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 1558597869

Certificate GIA 1558597869

Diamond specifications and retailer prices

From $910 NZD
HK$4,000 HKD
As of November 1, 2026
Save $1,598 NZD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,405 NZD at NZ Jewellers · As of November 3, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558597869. Listed at 16 retailers as of November 1, 2026, with a 176% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle37.85°
Pavilion angle39.39°
OriginNatural
Grading LabGIA
CertificateGIA 1558597869
Dimensions8.02 × 4.10 × 2.60 mm
L/W Ratio1.96
Girdle conditionFaceted
Key to symbols
Cloud, Twinning Wisp
Top View
8.02 mm4.10 mm0.50 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1558597869
Side View
Table 59.0%Crown 37.85°Girdle: THK-VTKPavilion 39.39°Culet: NoneDepth 63.5%

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: $3,405 NZD|Low: $910 NZD|High: $3,510 NZD|Avg: $1,593 NZD|-3.0%
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 3, 2026
Retailer 16$910 NZD
Retailer 4$1,001 NZD
Retailer 3$1,064 NZD
Retailer 6$1,117 NZD
Retailer 7$1,136 NZD
Retailer 13$1,169 NZD
Retailer 14$1,169 NZD
Retailer 2$1,233 NZD
Retailer 5$1,253 NZD
Retailer 9$1,333 NZD
Retailer 15$1,484 NZD
Retailer 10$1,601 NZD
Retailer 12$1,676 NZD
Retailer 8$1,683 NZD
Retailer 11$2,508 NZD
NZ Jewellers$3,405 NZD

38 data points across 16 retailers

16 retailers$910 NZD to $2,508 NZD

B+
Cheapest Retailer
-
$910 NZD
HK$4,000 HKD
B+
Retailer 2
-
$1,001 NZD
$563 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,064 NZD
SGD 809 SGD
View
B+
Retailer 4
-
$1,117 NZD
SGD 849 SGD
View
B+
Retailer 5
-
$1,136 NZD
$639 USD
View
B+
Retailer 6
-
$1,169 NZD
$658 USD
View
B+
Retailer 7
-
$1,169 NZD
$658 USD
View
B
Retailer 8
-
$1,233 NZD
£546 GBP
View
B
Retailer 9
-
$1,253 NZD
$705 USD
View
B
Retailer 10
-
$1,333 NZD
£591 GBP
View
B
Retailer 11
-
$1,484 NZD
$835 USD
View
B
Retailer 12
-
$1,601 NZD
€858 EUR
View
B
Retailer 13
-
$1,676 NZD
ZAR 15,236 ZAR
View
Retailer 14
-
$1,683 NZD
A$1,457 AUD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$2,508 NZD
£1,111 GBP
View
Most Expensive
NZ Jewellers
853c07dd-cc0c-4a75-b049-7a17799a9cf8 · Nov 3
$3,405 NZD
$1,916 USD
View
Price under review
15 more retailers have this diamond
Prices start from $910 NZDSave up to $1,598 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
$910 NZD