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Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2536668605

Certificate GIA 2536668605

Diamond specifications and retailer prices

From $7,845 AUD
As of November 7, 2026
Save $7,179 AUD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $17,554 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 2536668605. Listed at 13 retailers as of November 4, 2026, with a 92% 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
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2536668605
Dimensions7.37 × 7.34 × 4.59 mm
L/W Ratio1.00
Top View
7.37 mm7.34 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536668605
Side View
Table 56.0%CrownGirdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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 7
Current: $10,932 AUD|Low: $7,845 AUD|High: $15,145 AUD|Avg: $10,449 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7$7,845 AUD
Retailer 5$8,360 AUD
Retailer 2$8,498 AUD
Retailer 8$8,532 AUD
Retailer 3$9,833 AUD
Retailer 6$10,726 AUD
Retailer 10$10,726 AUD
Retailer 1$10,932 AUD
Retailer 9$11,076 AUD
Retailer 4$15,024 AUD

31 data points across 10 retailers

13 retailers$7,845 AUD to $15,024 AUD

A
Cheapest Retailer
-
$7,845 AUD
Retailer 2
-
$8,360 AUD
View
Price last confirmed 3 days ago
B+
Retailer 3
-
$8,498 AUD
View
Final sale: no returns
B+
Retailer 4
-
$8,532 AUD
View
Retailer 5
-
$9,508 AUD
View
Price last confirmed 37 days ago
Retailer 6
-
$9,655 AUD
View
Price last confirmed 39 days ago
B+
Retailer 7
-
$9,833 AUD
View
B+
Retailer 8
-
$10,726 AUD
View
B+
Retailer 9
-
$10,726 AUD
View
B+
Retailer 10
-
$10,932 AUD
View
B
Retailer 11
-
$11,076 AUD
View
B
Retailer 12
-
$15,024 AUD
View
Most Expensive
NZ Jewellers
ac380ade-53ad-4010-a87c-161757203340 · Sep 28
$17,554 AUD
$12,061 USD
View
Price last confirmed 40 days ago
12 more retailers have this diamond
Prices start from $7,845 AUDSave up to $7,179 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
$7,845 AUD