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Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5476366359

Certificate GIA 5476366359

Diamond specifications and retailer prices

From $587 NZD
As of November 4, 2026
Save $1,921 NZD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,555 NZD at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5476366359. Listed at 16 retailers as of November 4, 2026, with a 327% 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

0.45
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5476366359
Dimensions4.90 × 4.86 × 3.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.90 mm4.86 mm0.45 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5476366359
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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 4
Current: $2,508 NZD|Low: $587 NZD|High: $2,555 NZD|Avg: $997 NZD|-1.8%
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
November 6, 2026
Retailer 7$587 NZD
Retailer 3$592 NZD
Retailer 11$639 NZD
Retailer 10$662 NZD
Retailer 9$671 NZD
Retailer 5$713 NZD
Retailer 4$799 NZD
Retailer 13$808 NZD
Retailer 2$838 NZD
Retailer 12$905 NZD
Retailer 6$1,190 NZD
Retailer 8$1,509 NZD
NZ Jewellers$2,508 NZD

40 data points across 13 retailers

16 retailers$587 NZD to $2,508 NZD

A
Cheapest Retailer
-
$587 NZD
A
Retailer 2
-
$592 NZD
View
Retailer 3
-
$603 NZD
View
Price last confirmed 51 days ago
Retailer 4
-
$639 NZD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$662 NZD
View
A
Retailer 6
-
$671 NZD
View
B+
Retailer 7
-
$799 NZD
View
B+
Retailer 8
-
$808 NZD
View
Retailer 9
-
$813 NZD
View
Price last confirmed 53 days ago
B+
Retailer 10
-
$838 NZD
View
B+
Retailer 11
-
$905 NZD
View
B+
Retailer 12
-
$998 NZD
View
B+
Retailer 13
-
$1,190 NZD
View
B
Retailer 14
-
$1,509 NZD
View
B
Retailer 15
-
$2,508 NZD
View
Most Expensive
NZ Jewellers
002be952-fe62-4d83-9b94-e61d8dcc6a1b · Sep 15
$2,555 NZD
$1,436 USD
View
Price last confirmed 52 days ago
15 more retailers have this diamond
Prices start from $587 NZDSave up to $1,921 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
0.45ct Round
$587 NZD