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Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1232503296

Certificate GIA 1232503296

Diamond specifications and retailer prices

From $7,983 AUD
As of November 1, 2026
Save $6,661 AUD (45%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $17,730 AUD at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1232503296. Listed at 25 retailers as of November 1, 2026, with a 83% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1232503296
Dimensions7.34 × 7.29 × 4.53 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud
Top View
7.34 mm7.29 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232503296
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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 1
Current: $9,253 AUD|Low: $7,983 AUD|High: $14,951 AUD|Avg: $10,300 AUD
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 10$7,983 AUD
Retailer 6$8,348 AUD
Retailer 13$8,834 AUD
Retailer 21$8,836 AUD
Retailer 8$8,885 AUD
Retailer 1$9,253 AUD
Retailer 9$9,421 AUD
Retailer 14$9,518 AUD
Retailer 11$9,571 AUD
Retailer 2$9,719 AUD
Retailer 19$9,964 AUD
Retailer 17$10,159 AUD
Retailer 4$10,253 AUD
Retailer 15$10,534 AUD
Retailer 3$10,581 AUD
Retailer 5$10,581 AUD
Retailer 7$10,930 AUD
Retailer 16$11,226 AUD
Retailer 22$11,643 AUD
Retailer 20$12,890 AUD
Retailer 12$13,106 AUD
Retailer 18$14,644 AUD

45 data points across 22 retailers

25 retailers$7,983 AUD to $14,644 AUD

A
Cheapest Retailer
-
$7,983 AUD
B+
Retailer 2
-
$8,348 AUD
View
B+
Retailer 3
-
$8,834 AUD
View
Final sale: no returns
B+
Retailer 4
-
$8,836 AUD
View
B+
Retailer 5
-
$8,885 AUD
View
B+
Retailer 6
-
$9,253 AUD
View
B+
Retailer 7
-
$9,421 AUD
View
B+
Retailer 8
-
$9,518 AUD
View
B+
Retailer 9
-
$9,571 AUD
View
Retailer 10
-
$9,604 AUD
View
Price last confirmed 40 days ago
B+
Retailer 11
-
$9,719 AUD
View
B+
Retailer 12
-
$9,964 AUD
View
B+
Retailer 13
-
$10,159 AUD
View
Retailer 14
-
$10,253 AUD
View
Price last confirmed 16 days ago
B+
Retailer 15
-
$10,534 AUD
View
B
Retailer 16
-
$10,581 AUD
View
B
Retailer 17
-
$10,581 AUD
View
B
Retailer 18
-
$10,930 AUD
View
Retailer 19
-
$11,081 AUD
View
Price last confirmed 39 days ago
B+
Retailer 20
-
$11,226 AUD
View
Retailer 21
-
$11,643 AUD
View
Price last confirmed 15 days ago
B
Retailer 22
-
$12,890 AUD
View
B
Retailer 23
-
$13,106 AUD
View
B
Retailer 24
-
$14,644 AUD
View
Most Expensive
NZ Jewellers
31c363f7-2741-4b40-8324-1d435581678b · Sep 28
$17,730 AUD
$12,182 USD
View
Price last confirmed 40 days ago
24 more retailers have this diamond
Prices start from $7,983 AUDSave up to $6,661 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
$7,983 AUD