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Round|Natural|IGI

1.54ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 811689355

Shape and cutting style on the report: Round brilliant

Certificate IGI 811689355

Diamond specifications and retailer prices

From $3,371 AUD
As of November 5, 2026
Save $4,500 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,871 AUD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 811689355. Listed at 13 retailers as of November 5, 2026, with prices from $3,371 to $7,871, a $4,500 spread on the same certified stone. NZ Jewellers lists it at $7,871. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 811689355
Dimensions7.37 × 7.41 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.37 mm7.41 mm1.54 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 811689355
Side View
Table 56.0%Crown 34.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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 5
Current: $4,670 AUD|Low: $3,371 AUD|High: $6,675 AUD|Avg: $4,206 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6$3,371 AUD
Retailer 8$3,480 AUD
Retailer 4$3,656 AUD
Retailer 7$3,766 AUD
Retailer 10$3,766 AUD
Retailer 5$3,966 AUD
Retailer 9$3,966 AUD
Retailer 1$4,670 AUD
Retailer 2$4,790 AUD
Retailer 3$6,578 AUD

25 data points across 10 retailers

13 retailers$3,371 AUD to $7,871 AUD

A
Cheapest Retailer
-
$3,371 AUD
A
Retailer 2
-
$3,656 AUD
View
Retailer 3
-
$3,766 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$3,766 AUD
View
B+
Retailer 5
-
$3,910 AUD
View
B+
Retailer 6
-
$3,966 AUD
View
B+
Retailer 7
-
$3,966 AUD
View
Retailer 8
-
$4,344 AUD
View
Price last confirmed 60 days ago
B+
Retailer 9
-
$4,344 AUD
View
A
Retailer 10
-
$4,670 AUD
View
B+
Retailer 11
-
$6,578 AUD
View
Retailer 12
-
$7,871 AUD
View
Price last confirmed 66 days ago
Most Expensive
B
NZ Jewellers
ac990f6d-bc97-4ce6-bd24-bbf8eeb6079a · Nov 5
$7,871 AUD
$5,510 USD
View
12 more retailers have this diamond
Prices start from $3,371 AUDSave up to $4,500 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
$3,371 AUD