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Heart|Natural|IGI

1.50ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 803629336

Shape and cutting style on the report: Heart brilliant

Certificate IGI 803629336

Diamond specifications and retailer prices

From $3,948 AUD
$2,767 USD
As of October 31, 2026
Save $3,425 AUD (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,916 AUD at NZ Jewellers · As of September 30, 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 very-good cut grade and certified by IGI 803629336. Listed at 16 retailers as of October 31, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle39.3°
OriginNatural
Grading LabIGI
CertificateIGI 803629336
Dimensions7.11 × 7.76 × 4.54 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Top View
7.11 mm7.76 mm1.50 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629336
Side View
Table 58.0%Crown 37.2°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 58.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,579 AUD|Low: $3,844 AUD|High: $7,691 AUD|Avg: $4,811 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$3,948 AUD
Retailer 12$4,068 AUD
Retailer 4$4,074 AUD
Retailer 11$4,218 AUD
Retailer 3$4,348 AUD
Retailer 2$4,545 AUD
Retailer 1$4,579 AUD
Retailer 7$4,613 AUD
Retailer 6$4,691 AUD
Retailer 5$4,851 AUD
Retailer 9$5,419 AUD
Retailer 8$7,374 AUD

42 data points across 12 retailers

16 retailers$3,948 AUD to $7,374 AUD

A
Cheapest Retailer
-
$3,948 AUD
$2,767 USD
A
Retailer 2
-
$4,068 AUD
$2,851 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,074 AUD
$2,855 USD
View
B+
Retailer 4
-
$4,218 AUD
$2,956 USD
View
B+
Retailer 5
-
$4,348 AUD
View
Retailer 6
-
$4,545 AUD
$3,185 USD
View
Price last confirmed 34 days ago
Retailer 7
-
$4,545 AUD
$3,185 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$4,579 AUD
$3,209 USD
View
B+
Retailer 9
-
$4,613 AUD
$3,233 USD
View
B+
Retailer 10
-
$4,691 AUD
£2,589 GBP
View
B+
Retailer 11
-
$4,851 AUD
€3,238 EUR
View
Retailer 12
-
$5,242 AUD
$3,674 USD
View
Price last confirmed 34 days ago
Retailer 13
-
$5,242 AUD
$3,674 USD
View
Price last confirmed 48 days ago
B+
Retailer 14
-
$5,419 AUD
ZAR 61,357 ZAR
View
B
Retailer 15
-
$7,374 AUD
£4,069 GBP
View
Most Expensive
NZ Jewellers
5da33c6a-fb2d-4105-aba0-07ed74d66d79 · Sep 30
$7,916 AUD
$5,548 USD
View
Price last confirmed 33 days ago
15 more retailers have this diamond
Prices start from $3,948 AUDSave up to $3,425 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
$3,948 AUD