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Heart|Natural|GIA

1.54ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 6535937549

Certificate GIA 6535937549

Diamond specifications and retailer prices

From $4,239 AUD
$2,978 USD
As of November 1, 2026
Save $4,699 AUD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,939 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.54ct natural heart diamond

This 1.54ct 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 GIA 6535937549. Listed at 14 retailers as of October 30, 2026, with prices from $4,239 to $8,939, a $4,699 spread on the same certified stone. NZ Jewellers lists it at $8,939. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.93°
OriginNatural
Grading LabGIA
CertificateGIA 6535937549
Dimensions8.18 × 7.25 × 4.53 mm
L/W Ratio1.13
Top View
8.18 mm7.25 mm1.54 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535937549
Side View
Table 58.0%Crown 34.93°Girdle: MED-VTKPavilionCulet: NoneDepth 55.4%

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 1
Current: $8,939 AUD|Low: $4,239 AUD|High: $9,769 AUD|Avg: $5,931 AUD|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 6$4,239 AUD
Retailer 13$4,554 AUD
Retailer 14$4,735 AUD
Retailer 2$5,005 AUD
Retailer 5$5,131 AUD
Retailer 11$5,131 AUD
Retailer 4$5,327 AUD
Retailer 12$5,337 AUD
Retailer 8$5,362 AUD
Retailer 3$5,424 AUD
Retailer 10$5,469 AUD
Retailer 9$5,919 AUD
Retailer 7$8,581 AUD
NZ Jewellers$8,939 AUD

32 data points across 14 retailers

14 retailers$4,239 AUD to $8,939 AUD

A
Cheapest Retailer
-
$4,239 AUD
$2,978 USD
A
Retailer 2
-
$4,554 AUD
$3,199 USD
View
A
Retailer 3
-
$4,735 AUD
$3,326 USD
View
Final sale: no returns
A
Retailer 4
-
$5,005 AUD
£2,768 GBP
View
A
Retailer 5
-
$5,131 AUD
$3,604 USD
View
A
Retailer 6
-
$5,131 AUD
$3,604 USD
View
A
Retailer 7
-
$5,327 AUD
$3,742 USD
View
A
Retailer 8
-
$5,337 AUD
$3,749 USD
View
A
Retailer 9
-
$5,362 AUD
£2,966 GBP
View
A
Retailer 10
-
$5,424 AUD
$3,810 USD
View
A
Retailer 11
-
$5,469 AUD
$3,842 USD
View
A
Retailer 12
-
$5,919 AUD
$4,158 USD
View
B
Retailer 13
-
$8,581 AUD
£4,746 GBP
View
Most Expensive
B+
NZ Jewellers
ea83e2a4-0a00-4111-99d2-b0ae3617cafa · Oct 30
$8,939 AUD
$6,279 USD
View
13 more retailers have this diamond
Prices start from $4,239 AUDSave up to $4,699 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 Heart
$4,239 AUD