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Round|Natural|GIA

1.53ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3525486689

Certificate GIA 3525486689

Diamond specifications and retailer prices

From $5,895 AUD
$4,141 USD
As of October 30, 2026
Save $6,538 AUD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $12,861 AUD at NZ Jewellers · As of October 20, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3525486689. Listed at 12 retailers as of October 29, 2026, with a 111% 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

1.53
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3525486689
Dimensions7.45 × 7.40 × 4.51 mm
L/W Ratio1.01
Star length50%
Top View
7.45 mm7.40 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3525486689
Side View
Table 59.0%Crown 33°Girdle: MED-THKPavilion 41°Culet: NoneDepth 60.7%

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: Oct 30
Current: $8,788 AUD|Low: $5,358 AUD|High: $12,433 AUD|Avg: $8,012 AUD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5$5,895 AUD
Retailer 4$6,430 AUD
Retailer 7$6,876 AUD
Retailer 2$7,129 AUD
Retailer 8$7,887 AUD
Retailer 9$7,887 AUD
Retailer 6$8,143 AUD
Retailer 1$8,788 AUD
Retailer 10$9,039 AUD
Retailer 3$12,433 AUD

27 data points across 10 retailers

12 retailers$5,895 AUD to $12,433 AUD

A
Cheapest Retailer
-
$5,895 AUD
$4,141 USD
A
Retailer 2
-
$6,430 AUD
$4,517 USD
View
Final sale: no returns
A
Retailer 3
-
$6,876 AUD
$4,830 USD
View
Retailer 4
-
$6,966 AUD
$4,893 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$6,966 AUD
$4,893 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$7,887 AUD
$5,540 USD
View
B+
Retailer 7
-
$7,887 AUD
$5,540 USD
View
Retailer 8
-
$8,038 AUD
$5,646 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$8,143 AUD
$5,720 USD
View
B+
Retailer 10
-
$8,788 AUD
€5,879 EUR
View
B
Retailer 11
-
$12,433 AUD
£6,877 GBP
View
Most Expensive
NZ Jewellers
d227b673-5ee7-40bc-899e-681f71329b29 · Oct 20
$12,861 AUD
$9,034 USD
View
Price last confirmed 10 days ago
11 more retailers have this diamond
Prices start from $5,895 AUDSave up to $6,538 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
1.53ct Round
$5,895 AUD