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Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1548025497

Certificate GIA 1548025497

Diamond specifications and retailer prices

From $380 AUD
As of November 6, 2026
Save $824 AUD (68%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,170 AUD at NZ Jewellers · As of August 29, 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 1548025497. Listed at 16 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

0.45
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548025497
Dimensions4.92 × 4.94 × 3.02 mm
L/W Ratio1.00
Star length55%
Girdle conditionFaceted
Key to symbols
Feather
Top View
4.92 mm4.94 mm0.45 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548025497
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.2%

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: $380 AUD|Low: $380 AUD|High: $1,257 AUD|Avg: $679 AUD|-8.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$380 AUD
Retailer 2$457 AUD
Retailer 9$539 AUD
Retailer 4$564 AUD
Retailer 10$593 AUD
Retailer 5$669 AUD
Retailer 7$689 AUD
Retailer 3$709 AUD
Retailer 6$873 AUD
Retailer 8$1,204 AUD

31 data points across 10 retailers

16 retailers$380 AUD to $1,204 AUD

A
Cheapest Retailer
-
$380 AUD
A
Retailer 2
-
$457 AUD
View
A
Retailer 3
-
$539 AUD
View
Retailer 4
-
$549 AUD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$564 AUD
View
A
Retailer 6
-
$593 AUD
View
Retailer 7
-
$621 AUD
View
Price last confirmed 38 days ago
Retailer 8
-
$653 AUD
View
Price last confirmed 68 days ago
B+
Retailer 9
-
$669 AUD
View
B+
Retailer 10
-
$689 AUD
View
B+
Retailer 11
-
$709 AUD
View
Retailer 12
-
$739 AUD
View
Price last confirmed 35 days ago
B+
Retailer 13
-
$873 AUD
View
B
Retailer 14
-
$1,204 AUD
View
Retailer 15
-
$2,103 AUD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
38fc1f19-a8ce-4a70-9d44-dcc7d143bacc · Aug 29
$2,170 AUD
$1,519 USD
View
Price last confirmed 69 days ago
15 more retailers have this diamond
Prices start from $380 AUDSave up to $824 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
$380 AUD