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Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1523229569

Certificate GIA 1523229569

Diamond specifications and retailer prices

From $279 AUD
As of November 6, 2026
Save $1,523 AUD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,910 AUD at NZ Jewellers · As of September 21, 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 1523229569. Listed at 18 retailers as of November 4, 2026, with a 547% 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
FluorescenceStrong
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1523229569
Dimensions4.99 × 4.96 × 3.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
4.99 mm4.96 mm0.45 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1523229569
Side View
Table 56.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.4%

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: $1,801 AUD|Low: $279 AUD|High: $1,801 AUD|Avg: $626 AUD
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
November 6, 2026
Retailer 2$279 AUD
Retailer 4$393 AUD
Retailer 13$397 AUD
Retailer 7$424 AUD
Retailer 5$443 AUD
Retailer 11$471 AUD
Retailer 8$499 AUD
Retailer 6$523 AUD
Retailer 14$536 AUD
Retailer 10$553 AUD
Retailer 9$673 AUD
Retailer 12$917 AUD
Retailer 3$1,197 AUD
NZ Jewellers$1,801 AUD

38 data points across 14 retailers

18 retailers$279 AUD to $1,801 AUD

A
Cheapest Retailer
-
$279 AUD
A
Retailer 2
-
$347 AUD
View
A
Retailer 3
-
$393 AUD
View
A
Retailer 4
-
$397 AUD
View
Retailer 5
-
$421 AUD
View
Price last confirmed 50 days ago
A
Retailer 6
-
$424 AUD
View
A
Retailer 7
-
$443 AUD
View
A
Retailer 8
-
$471 AUD
View
A
Retailer 9
-
$499 AUD
View
A
Retailer 10
-
$523 AUD
View
A
Retailer 11
-
$536 AUD
View
A
Retailer 12
-
$553 AUD
View
Retailer 13
-
$567 AUD
View
Price last confirmed 45 days ago
B+
Retailer 14
-
$673 AUD
View
B+
Retailer 15
-
$917 AUD
View
B
Retailer 16
-
$1,197 AUD
View
C
Retailer 17
-
$1,801 AUD
View
Most Expensive
NZ Jewellers
00322607-f4cd-432d-aa3c-c48732bef202 · Sep 21
$1,910 AUD
$1,337 USD
View
Price last confirmed 46 days ago
17 more retailers have this diamond
Prices start from $279 AUDSave up to $1,523 AUD

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
$279 AUD