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Heart|Natural|HRD

1.53ct I SI2 Heart Natural Diamond

ID • I/SI2 • HRD 250000306035

Shape and cutting style on the report: Heart

Certificate HRD 250000306035

Diamond specifications and retailer prices

From $3,391 AUD
$2,382 USD
As of November 2, 2026
Save $3,083 AUD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,685 AUD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct natural heart 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 stated by the retailer rather than the lab and certified by HRD 250000306035. Listed at 7 retailers as of October 29, 2026, with a 91% 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 250000306035
Dimensions6.63 × 7.92 × 4.84 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizePointed
Top View
6.63 mm7.92 mm1.53 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 250000306035
Side View
Table 63.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.0%

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: Nov 2
Current: $7,685 AUD|Low: $3,109 AUD|High: $7,685 AUD|Avg: $4,680 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 7$3,391 AUD
Retailer 9$3,573 AUD
Retailer 5$3,676 AUD
Retailer 6$3,676 AUD
Retailer 3$3,845 AUD
Retailer 4$4,241 AUD
Retailer 8$4,679 AUD
Retailer 10$5,396 AUD
Retailer 2$6,474 AUD
NZ Jewellers$7,685 AUD

18 data points across 10 retailers

7 retailers$3,391 AUD to $6,474 AUD

A
Cheapest Retailer
-
$3,391 AUD
$2,382 USD
Final sale: no returns
Retailer 2
-
$3,676 AUD
$2,582 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$3,676 AUD
$2,582 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$3,845 AUD
$2,701 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$4,241 AUD
$2,979 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$6,474 AUD
£3,581 GBP
View
Most Expensive
NZ Jewellers
5c1732a6-8d8e-49c5-b2c7-a53139bdc82f · Oct 24
$7,685 AUD
$5,398 USD
View
Price last confirmed 9 days ago
6 more retailers have this diamond
Prices start from $3,391 AUDSave up to $3,083 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 Heart
$3,391 AUD