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Round|Natural|IGI

1.54ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 728527676

Shape and cutting style on the report: Round brilliant

Certificate IGI 728527676

Diamond specifications and retailer prices

From $4,314 AUD
As of November 4, 2026
Save $3,484 AUD (45%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,147 AUD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 728527676. Listed at 8 retailers as of November 4, 2026, with a 81% 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

1.54
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 728527676
Dimensions7.41 × 7.37 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.41 mm7.37 mm1.54 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 728527676
Side View
Table 61.0%Crown 32.9°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,801 AUD|Low: $3,956 AUD|High: $7,912 AUD|Avg: $5,161 AUD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 9$4,091 AUD
Retailer 8$4,191 AUD
Retailer 4$4,314 AUD
Retailer 6$4,608 AUD
Retailer 10$4,628 AUD
Retailer 1$4,801 AUD
Retailer 5$5,000 AUD
Retailer 7$5,483 AUD
Retailer 2$6,667 AUD
Retailer 3$7,798 AUD

19 data points across 10 retailers

8 retailers$4,314 AUD to $7,798 AUD

Retailer 1
-
$4,191 AUD
Price last confirmed 82 days ago
A
Retailer 2
-
$4,314 AUD
View
Final sale: no returns
Retailer 3
-
$4,608 AUD
View
Price last confirmed 50 days ago
A
Retailer 4
-
$4,801 AUD
View
Retailer 5
-
$5,000 AUD
View
Price last confirmed 11 days ago
Retailer 6
-
$5,395 AUD
View
Price last confirmed 45 days ago
B
Retailer 7
-
$7,798 AUD
View
Most Expensive
NZ Jewellers
1af7b4d8-dd66-4686-8b9c-074c18b0e1df · Sep 19
$8,147 AUD
$5,703 USD
View
Price last confirmed 47 days ago
7 more retailers have this diamond
Prices start from $4,314 AUDSave up to $3,484 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
1.54ct Round
$4,314 AUD