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Round|Natural|GIA

0.53ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1503730081

Certificate GIA 1503730081

Diamond specifications and retailer prices

From $539 AUD
As of November 6, 2026
Save $1,774 AUD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,328 AUD at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 0.53ct natural round diamond

This 0.53ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1503730081. Listed at 17 retailers as of November 4, 2026, with a 329% 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

0.53
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1503730081
Dimensions5.18 × 5.14 × 3.24 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Top View
5.18 mm5.14 mm0.53 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1503730081
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,313 AUD|Low: $539 AUD|High: $2,321 AUD|Avg: $979 AUD|-0.4%
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$539 AUD
Retailer 12$684 AUD
Retailer 6$699 AUD
Retailer 4$737 AUD
Retailer 9$743 AUD
Retailer 11$794 AUD
Retailer 13$794 AUD
Retailer 5$851 AUD
Retailer 7$910 AUD
Retailer 14$917 AUD
Retailer 3$924 AUD
Retailer 8$993 AUD
Retailer 10$1,701 AUD
NZ Jewellers$2,313 AUD

36 data points across 14 retailers

17 retailers$539 AUD to $2,313 AUD

A
Cheapest Retailer
-
$539 AUD
A
Retailer 2
-
$684 AUD
View
Final sale: no returns
A
Retailer 3
-
$699 AUD
View
A
Retailer 4
-
$737 AUD
View
Retailer 5
-
$743 AUD
View
Price last confirmed 53 days ago
A
Retailer 6
-
$743 AUD
View
B+
Retailer 7
-
$794 AUD
View
Retailer 8
-
$794 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$851 AUD
View
Retailer 10
-
$857 AUD
View
Price last confirmed 53 days ago
B+
Retailer 11
-
$910 AUD
View
B+
Retailer 12
-
$917 AUD
View
B+
Retailer 13
-
$924 AUD
View
B+
Retailer 14
-
$993 AUD
View
B
Retailer 15
-
$1,701 AUD
View
B
Retailer 16
-
$2,313 AUD
View
Most Expensive
NZ Jewellers
04b950a9-cda4-405a-b4d7-e1cae3d12a90 · Sep 15
$2,328 AUD
$1,630 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from $539 AUDSave up to $1,774 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
0.53ct Round
$539 AUD