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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 1537168777

Certificate GIA 1537168777

Diamond specifications and retailer prices

From $4,844 AUD
As of November 6, 2026
Save $5,333 AUD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,131 AUD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1537168777. Listed at 19 retailers as of November 1, 2026, with a 110% 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

1.50
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1537168777
Dimensions8.24 × 7.23 × 4.54 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Knot, Cloud, Needle
Top View
8.24 mm7.23 mm1.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1537168777
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 55.0%

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 6
Current: $5,094 AUD|Low: $4,787 AUD|High: $10,332 AUD|Avg: $6,553 AUD|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$4,844 AUD
Retailer 1$5,094 AUD
Retailer 7$5,720 AUD
Retailer 11$5,861 AUD
Retailer 4$6,110 AUD
Retailer 5$6,433 AUD
Retailer 8$6,549 AUD
Retailer 10$6,567 AUD
Retailer 3$6,855 AUD
Retailer 6$7,749 AUD
Retailer 2$10,176 AUD

34 data points across 11 retailers

19 retailers$4,844 AUD to $10,176 AUD

A
Cheapest Retailer
-
$4,844 AUD
A
Retailer 2
-
$5,094 AUD
View
B+
Retailer 3
-
$5,720 AUD
View
B+
Retailer 4
-
$5,861 AUD
View
Final sale: no returns
B+
Retailer 5
-
$5,915 AUD
View
B+
Retailer 6
-
$5,916 AUD
View
B+
Retailer 7
-
$6,110 AUD
View
Retailer 8
-
$6,389 AUD
View
Price last confirmed 22 days ago
Retailer 9
-
$6,389 AUD
View
Price last confirmed 22 days ago
Retailer 10
-
$6,389 AUD
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$6,433 AUD
View
B+
Retailer 12
-
$6,549 AUD
View
B+
Retailer 13
-
$6,567 AUD
View
B
Retailer 14
-
$6,667 AUD
View
Retailer 15
-
$6,855 AUD
View
Price last confirmed 29 days ago
Retailer 16
-
$7,372 AUD
View
Price last confirmed 19 days ago
B
Retailer 17
-
$7,749 AUD
View
B
Retailer 18
-
$10,176 AUD
View
Most Expensive
NZ Jewellers
a130a7da-e239-47a1-afaa-8a84ba7a6ba9 · Oct 18
$11,131 AUD
$7,648 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from $4,844 AUDSave up to $5,333 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
1.50ct Heart
$4,844 AUD