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Round|Natural|GIA

1.53ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2526342497

Certificate GIA 2526342497

Diamond specifications and retailer prices

From $7,738 AUD
As of November 4, 2026
Save $8,642 AUD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,381 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526342497. Listed at 15 retailers as of November 4, 2026, with prices from $7,738 to $16,381, a $8,642 spread on the same certified stone. NZ Jewellers lists it at $16,381. 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

1.53
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2526342497
Dimensions7.35 × 7.30 × 4.61 mm
L/W Ratio1.01
Star length50%
Top View
7.35 mm7.30 mm1.53 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2526342497
Side View
Table 56.0%Crown 32.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $11,634 AUD|Low: $7,738 AUD|High: $14,603 AUD|Avg: $10,498 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$7,738 AUD
Retailer 7$8,191 AUD
Retailer 2$9,239 AUD
Retailer 8$9,604 AUD
Retailer 4$10,019 AUD
Retailer 1$11,634 AUD
Retailer 3$11,950 AUD
Retailer 5$14,391 AUD

38 data points across 8 retailers

15 retailers$7,738 AUD to $16,381 AUD

B+
Cheapest Retailer
-
$7,738 AUD
B
Retailer 2
-
$8,191 AUD
View
Final sale: no returns
B+
Retailer 3
-
$8,267 AUD
View
Retailer 4
-
$8,874 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$8,874 AUD
View
B
Retailer 6
-
$8,874 AUD
View
B
Retailer 7
-
$9,239 AUD
View
Retailer 8
-
$9,604 AUD
View
Price last confirmed 33 days ago
B
Retailer 9
-
$10,019 AUD
View
B
Retailer 10
-
$10,239 AUD
View
Retailer 11
-
$10,798 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$11,634 AUD
View
B
Retailer 13
-
$11,950 AUD
View
B
Retailer 14
-
$14,391 AUD
View
Most Expensive
B
NZ Jewellers
1b6aec2e-6dfb-486c-8d93-cc51ed922fc8 · Nov 5
$16,381 AUD
$11,255 USD
View
14 more retailers have this diamond
Prices start from $7,738 AUDSave up to $8,642 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.

B+
1.53ct Round
$7,738 AUD