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Round|Natural|IGI

1.53ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 654479939

Shape and cutting style on the report: Round brilliant

Certificate IGI 654479939

Diamond specifications and retailer prices

From $3,857 AUD
$2,709 USD
As of October 30, 2026
Save $5,149 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,006 AUD at NZ Jewellers · As of October 30, 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 IGI 654479939. Listed at 13 retailers as of October 30, 2026, with prices from $3,857 to $9,006, a $5,149 spread on the same certified stone. NZ Jewellers lists it at $9,006. 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
PolishVery Good
SymmetryVery Good
FluorescenceStrong
Crown angle34.3°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 654479939
Dimensions7.34 × 7.38 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.34 mm7.38 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateIGI 654479939
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

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: $9,006 AUD|Low: $3,857 AUD|High: $9,006 AUD|Avg: $5,237 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$3,857 AUD
Retailer 10$4,073 AUD
Retailer 6$4,308 AUD
Retailer 8$4,308 AUD
Retailer 7$4,473 AUD
Retailer 2$4,673 AUD
Retailer 5$4,970 AUD
Retailer 3$5,043 AUD
Retailer 4$7,243 AUD
NZ Jewellers$9,006 AUD

42 data points across 10 retailers

13 retailers$3,857 AUD to $9,006 AUD

A
Cheapest Retailer
-
$3,857 AUD
$2,709 USD
A
Retailer 2
-
$4,073 AUD
$2,861 USD
View
B+
Retailer 3
-
$4,308 AUD
$3,026 USD
View
Retailer 4
-
$4,308 AUD
$3,026 USD
View
Price last confirmed 43 days ago
A
Retailer 5
-
$4,308 AUD
$3,026 USD
View
A
Retailer 6
-
$4,473 AUD
$3,142 USD
View
A
Retailer 7
-
$4,673 AUD
£2,585 GBP
View
B+
Retailer 8
-
$4,970 AUD
$3,491 USD
View
Retailer 9
-
$4,970 AUD
$3,491 USD
View
Price last confirmed 42 days ago
A
Retailer 10
-
$5,043 AUD
€3,374 EUR
View
B+
Retailer 11
-
$7,243 AUD
£4,006 GBP
View
Retailer 12
-
$9,006 AUD
$6,326 USD
View
Price last confirmed 41 days ago
Most Expensive
B
NZ Jewellers
b2797b03-9ecd-4126-a899-35f91d49bae5 · Oct 30
$9,006 AUD
$6,326 USD
View
12 more retailers have this diamond
Prices start from $3,857 AUDSave up to $5,149 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
$3,857 AUD