Round|Natural|GIA

0.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5496515083

Certificate GIA 5496515083

Diamond specifications and retailer prices

From $589 NZD
As of November 6, 2026
Save $1,279 NZD (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,104 NZD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5496515083. Listed at 18 retailers as of November 4, 2026, with a 217% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5496515083
Dimensions5.08 × 5.04 × 3.14 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.08 mm5.04 mm0.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5496515083
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.1%

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 6
Current: $3,104 NZD|Low: $589 NZD|High: $3,104 NZD|Avg: $1,383 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$589 NZD
Retailer 9$747 NZD
Retailer 10$767 NZD
Retailer 4$993 NZD
Retailer 5$1,039 NZD
Retailer 3$1,158 NZD
Retailer 6$1,868 NZD
Retailer 8$2,156 NZD
Retailer 7$2,250 NZD
NZ Jewellers$3,104 NZD

41 data points across 10 retailers

18 retailers$589 NZD to $1,868 NZD

A
Cheapest Retailer
-
$589 NZD
Retailer 2
-
$683 NZD
View
Price last confirmed 63 days ago
A
Retailer 3
-
$747 NZD
View
Final sale: no returns
A
Retailer 4
-
$767 NZD
View
Retailer 5
-
$809 NZD
View
Price last confirmed 44 days ago
Retailer 6
-
$845 NZD
View
Price last confirmed 16 days ago
Retailer 7
-
$872 NZD
View
Price last confirmed 21 days ago
Retailer 8
-
$934 NZD
View
Price last confirmed 68 days ago
Retailer 9
-
$934 NZD
View
Price last confirmed 45 days ago
B+
Retailer 10
-
$993 NZD
View
B+
Retailer 11
-
$1,039 NZD
View
B+
Retailer 12
-
$1,042 NZD
View
B+
Retailer 13
-
$1,158 NZD
View
B
Retailer 14
-
$1,868 NZD
View
Retailer 15
-
$2,156 NZD
View
Price last confirmed 16 days ago
Retailer 16
-
$2,250 NZD
View
Price last confirmed 15 days ago
Retailer 17
-
$3,104 NZD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
5f09179c-a80b-4874-b199-7b70a7093f10 · Oct 20
$3,104 NZD
$1,745 USD
View
Price last confirmed 17 days ago
17 more retailers have this diamond
Prices start from $589 NZDSave up to $1,279 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 Round
$589 NZD