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Heart|Natural|GIA

1.50ct J SI2 Heart Natural Diamond

ID • J/SI2 • GIA 1232913339

Certificate GIA 1232913339

Diamond specifications and retailer prices

From $4,851 AUD
As of November 4, 2026
Save $5,730 AUD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,495 AUD at NZ Jewellers · As of October 9, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232913339. Listed at 13 retailers as of November 4, 2026, with a 118% 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1232913339
Dimensions6.77 × 7.64 × 4.76 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Needle
Top View
6.77 mm7.64 mm1.50 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232913339
Side View
Table 58.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 62.4%

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 4
Current: $6,551 AUD|Low: $4,851 AUD|High: $10,667 AUD|Avg: $6,679 AUD|-0.5%
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 11$4,851 AUD
Retailer 9$5,098 AUD
Retailer 3$5,372 AUD
Retailer 10$6,098 AUD
Retailer 1$6,551 AUD
Retailer 6$6,797 AUD
Retailer 7$6,797 AUD
Retailer 8$7,030 AUD
Retailer 2$7,092 AUD
Retailer 4$7,495 AUD
Retailer 5$10,581 AUD

36 data points across 11 retailers

13 retailers$4,851 AUD to $10,581 AUD

A
Cheapest Retailer
-
$4,851 AUD
B+
Retailer 2
-
$5,098 AUD
View
Retailer 3
-
$5,977 AUD
View
Price last confirmed 37 days ago
Retailer 4
-
$5,977 AUD
View
Price last confirmed 28 days ago
B+
Retailer 5
-
$6,098 AUD
View
B+
Retailer 6
-
$6,551 AUD
View
B
Retailer 7
-
$6,797 AUD
View
B
Retailer 8
-
$6,797 AUD
View
Retailer 9
-
$6,897 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$7,030 AUD
View
B
Retailer 11
-
$7,495 AUD
View
B
Retailer 12
-
$10,581 AUD
View
Most Expensive
NZ Jewellers
0eb2712c-37e1-4bcf-a5c4-38db81d65526 · Oct 9
$11,495 AUD
$7,898 USD
View
Price last confirmed 28 days ago
12 more retailers have this diamond
Prices start from $4,851 AUDSave up to $5,730 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
$4,851 AUD