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Heart|Natural|IGI

1.50ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 768623506

Shape and cutting style on the report: Heart brilliant

Certificate IGI 768623506

Diamond specifications and retailer prices

From $3,433 AUD
As of November 6, 2026
Save $4,995 AUD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,428 AUD at NZ Jewellers · As of November 3, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 768623506. Listed at 11 retailers as of November 3, 2026, with prices from $3,433 to $8,428, a $4,995 spread on the same certified stone. NZ Jewellers lists it at $8,428. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38.4°
OriginNatural
Grading LabIGI
CertificateIGI 768623506
Dimensions7.24 × 7.89 × 4.41 mm
L/W Ratio1.09
Girdle conditionFaceted
Top View
7.24 mm7.89 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 768623506
Side View
Table 60.0%Crown 35.9°Girdle: MED-THKPavilion 38.4°CuletDepth 55.9%

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: $3,433 AUD|Low: $3,433 AUD|High: $7,147 AUD|Avg: $4,750 AUD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$3,433 AUD
Retailer 2$3,911 AUD
Retailer 6$4,031 AUD
Retailer 4$4,919 AUD
Retailer 3$4,985 AUD
Retailer 5$7,062 AUD

37 data points across 6 retailers

11 retailers$3,433 AUD to $8,428 AUD

A
Cheapest Retailer
-
$3,433 AUD
B+
Retailer 2
-
$3,911 AUD
View
B+
Retailer 3
-
$4,031 AUD
View
B+
Retailer 4
-
$4,031 AUD
View
B+
Retailer 5
-
$4,186 AUD
View
B+
Retailer 6
-
$4,237 AUD
View
B+
Retailer 7
-
$4,651 AUD
View
B+
Retailer 8
-
$4,919 AUD
View
B+
Retailer 9
-
$4,985 AUD
View
B
Retailer 10
-
$7,062 AUD
View
Most Expensive
C
NZ Jewellers
848a1b9b-f52f-4380-9d0e-bdc63a0db54d · Nov 3
$8,428 AUD
$5,791 USD
View
10 more retailers have this diamond
Prices start from $3,433 AUDSave up to $4,995 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
$3,433 AUD