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Round|Natural|HRD

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • HRD 250000293738

Certificate HRD 250000293738

Diamond specifications and retailer prices

From $4,546 AUD
SGD 4,315 SGD
As of October 31, 2026
Save $5,443 AUD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,351 AUD at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by HRD 250000293738. Listed at 13 retailers as of October 29, 2026, with a 120% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41°
OriginNatural
Grading LabHRD
CertificateHRD 250000293738
Dimensions7.51 × 7.48 × 4.49 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
7.51 mm7.48 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000293738
Side View
Table 60.0%Crown 33.1°Girdle: MediumPavilion 41°Culet: NoneDepth 60.0%

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 31
Current: $4,831 AUD|Low: $4,546 AUD|High: $10,056 AUD|Avg: $6,440 AUD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 5$4,546 AUD
Retailer 1$4,831 AUD
Retailer 2$6,116 AUD
Retailer 3$6,724 AUD
Retailer 4$9,989 AUD

39 data points across 5 retailers

13 retailers$4,546 AUD to $9,989 AUD

A
Cheapest Retailer
-
$4,546 AUD
SGD 4,315 SGD
A
Retailer 2
-
$4,831 AUD
₹323,224 INR
View
A
Retailer 3
-
$5,515 AUD
$3,874 USD
View
Retailer 4
-
$5,941 AUD
$4,173 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$5,941 AUD
$4,173 USD
View
Price last confirmed 16 days ago
Retailer 6
-
$5,941 AUD
$4,173 USD
View
Price last confirmed 16 days ago
A
Retailer 7
-
$5,951 AUD
$4,180 USD
View
A
Retailer 8
-
$6,116 AUD
£3,383 GBP
View
A
Retailer 9
-
$6,152 AUD
$4,321 USD
View
A
Retailer 10
-
$6,724 AUD
€4,498 EUR
View
Retailer 11
-
$6,856 AUD
$4,816 USD
View
Price last confirmed 13 days ago
B+
Retailer 12
-
$9,989 AUD
£5,525 GBP
View
Most Expensive
NZ Jewellers
617fd6d0-dbbe-4a8f-9657-5cd04cfd56b7 · Oct 17
$10,351 AUD
$7,271 USD
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from $4,546 AUDSave up to $5,443 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
$4,546 AUD