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Heart|Natural|IGI

1.50ct E SI1 Heart Natural Diamond

VG • E/SI1 • IGI 610305750

Shape and cutting style on the report: Heart brilliant

Certificate IGI 610305750

Diamond specifications and retailer prices

From $5,111 AUD
As of November 5, 2026
Save $1,979 AUD (28%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,742 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 610305750. Listed at 9 retailers as of November 5, 2026, with a 39% 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 610305750
Dimensions6.78 × 7.79 × 4.67 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Top View
6.78 mm7.79 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 610305750
Side View
Table 62.0%Crown 36.4°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 59.9%

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 5
Current: $5,993 AUD|Low: $5,111 AUD|High: $11,789 AUD|Avg: $7,570 AUD|-17.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$5,111 AUD
Retailer 4$5,538 AUD
Retailer 6$5,804 AUD
Retailer 1$5,993 AUD
Retailer 7$6,750 AUD
Retailer 3$7,091 AUD
Retailer 9$7,313 AUD
Retailer 10$7,313 AUD
Retailer 2$8,725 AUD
Retailer 8$11,757 AUD

26 data points across 10 retailers

9 retailers$5,111 AUD to $7,091 AUD

A
Cheapest Retailer
-
$5,111 AUD
A
Retailer 2
-
$5,538 AUD
View
Retailer 3
-
$5,804 AUD
View
Price last confirmed 24 days ago
A
Retailer 4
-
$5,993 AUD
View
A
Retailer 5
-
$6,022 AUD
View
B+
Retailer 6
-
$7,091 AUD
View
Retailer 7
-
$7,313 AUD
View
Price last confirmed 29 days ago
Retailer 8
-
$8,438 AUD
View
Price last confirmed 28 days ago
Most Expensive
NZ Jewellers
2ddb6b87-c8e4-4948-943a-ceaa3f8773c6 · Sep 30
$12,742 AUD
$8,755 USD
View
Price last confirmed 37 days ago
8 more retailers have this diamond
Prices start from $5,111 AUDSave up to $1,979 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
$5,111 AUD