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Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6525634970

Certificate GIA 6525634970

Diamond specifications and retailer prices

From $377 AUD
As of November 6, 2026
Save $1,650 AUD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,027 AUD at NZ Jewellers · As of November 4, 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 6525634970. Listed at 14 retailers as of November 4, 2026, with prices from $377 to $2,027, a $1,650 spread on the same certified stone. NZ Jewellers lists it at $2,027. 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 angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6525634970
Dimensions4.93 × 4.90 × 3.01 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
4.93 mm4.90 mm0.45 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6525634970
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.1%

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: $2,027 AUD|Low: $377 AUD|High: $2,114 AUD|Avg: $803 AUD|-4.1%
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$377 AUD
Retailer 6$457 AUD
Retailer 14$529 AUD
Retailer 3$567 AUD
Retailer 5$567 AUD
Retailer 4$577 AUD
Retailer 12$590 AUD
Retailer 7$673 AUD
Retailer 11$711 AUD
Retailer 13$714 AUD
Retailer 10$716 AUD
Retailer 8$961 AUD
Retailer 9$1,219 AUD
NZ Jewellers$2,027 AUD

28 data points across 14 retailers

14 retailers$377 AUD to $2,027 AUD

A
Cheapest Retailer
-
$377 AUD
A
Retailer 2
-
$457 AUD
View
A
Retailer 3
-
$529 AUD
View
Retailer 4
-
$567 AUD
View
Price last confirmed 13 days ago
Retailer 5
-
$567 AUD
View
Price last confirmed 11 days ago
Retailer 6
-
$577 AUD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$590 AUD
View
B+
Retailer 8
-
$673 AUD
View
B+
Retailer 9
-
$711 AUD
View
B+
Retailer 10
-
$714 AUD
View
B+
Retailer 11
-
$716 AUD
View
B+
Retailer 12
-
$961 AUD
View
B
Retailer 13
-
$1,219 AUD
View
Most Expensive
B
NZ Jewellers
169d1c33-e0d1-4e39-8a91-66574572a036 · Nov 4
$2,027 AUD
$1,419 USD
View
13 more retailers have this diamond
Prices start from $377 AUDSave up to $1,650 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
$377 AUD