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Round|Natural|GIA

0.45ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1459070089

Certificate GIA 1459070089

Diamond specifications and retailer prices

From $352 NZD
As of November 6, 2026
Save $1,860 NZD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,266 NZD at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1459070089. Listed at 22 retailers as of November 4, 2026, with a 529% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1459070089
Dimensions4.89 × 4.84 × 3.07 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Key to symbols
Crystal, Cloud
Top View
4.89 mm4.84 mm0.45 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1459070089
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.2%

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: $2,212 NZD|Low: $352 NZD|High: $2,327 NZD|Avg: $756 NZD|-3.8%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 11$352 NZD
Retailer 8$438 NZD
Retailer 17$489 NZD
Retailer 13$536 NZD
Retailer 9$554 NZD
Retailer 10$570 NZD
Retailer 2$584 NZD
Retailer 6$592 NZD
Retailer 16$608 NZD
Retailer 5$657 NZD
Retailer 15$687 NZD
Retailer 12$722 NZD
Retailer 3$759 NZD
Retailer 14$850 NZD
Retailer 7$902 NZD
Retailer 4$1,124 NZD
NZ Jewellers$2,212 NZD

18 data points across 17 retailers

22 retailers$352 NZD to $2,212 NZD

A
Cheapest Retailer
-
$352 NZD
A
Retailer 2
-
$438 NZD
View
A
Retailer 3
-
$489 NZD
View
A
Retailer 4
-
$536 NZD
View
Retailer 5
-
$554 NZD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$570 NZD
View
A
Retailer 7
-
$584 NZD
View
A
Retailer 8
-
$592 NZD
View
A
Retailer 9
-
$608 NZD
View
Retailer 10
-
$653 NZD
View
Price last confirmed 38 days ago
A
Retailer 11
-
$657 NZD
View
Retailer 12
-
$658 NZD
View
Price last confirmed 51 days ago
A
Retailer 13
-
$687 NZD
View
A
Retailer 14
-
$722 NZD
View
A
Retailer 15
-
$759 NZD
View
Retailer 16
-
$788 NZD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
$850 NZD
View
B+
Retailer 18
-
$902 NZD
View
Retailer 19
-
$929 NZD
View
Price last confirmed 38 days ago
B+
Retailer 20
-
$1,124 NZD
View
B
Retailer 21
-
$2,212 NZD
View
Most Expensive
NZ Jewellers
1bccaf41-e474-481f-b7e3-ae63fd9220d0 · Sep 28
$2,266 NZD
$1,256 USD
View
Price last confirmed 39 days ago
21 more retailers have this diamond
Prices start from $352 NZDSave up to $1,860 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
$352 NZD