CaratHunter
Plans
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 $4,918 NZD
$2,767 USD
As of October 31, 2026
Save $4,267 NZD (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,860 NZD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,843 NZD|Low: $4,788 NZD|High: $9,579 NZD|Avg: $5,999 NZD|-1.4%
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 3, 2026
Retailer 10$4,918 NZD
Retailer 12$5,067 NZD
Retailer 4$5,074 NZD
Retailer 11$5,253 NZD
Retailer 3$5,416 NZD
Retailer 2$5,661 NZD
Retailer 5$5,703 NZD
Retailer 7$5,746 NZD
Retailer 1$5,843 NZD
Retailer 6$6,043 NZD
Retailer 9$6,750 NZD
Retailer 8$9,184 NZD

42 data points across 12 retailers

16 retailers$4,918 NZD to $9,184 NZD

A
Cheapest Retailer
-
$4,918 NZD
$2,767 USD
A
Retailer 2
-
$5,067 NZD
$2,851 USD
View
Final sale: no returns
B+
Retailer 3
-
$5,074 NZD
$2,855 USD
View
B+
Retailer 4
-
$5,253 NZD
$2,956 USD
View
B+
Retailer 5
-
$5,416 NZD
A$4,688 AUD
View
Retailer 6
-
$5,661 NZD
$3,185 USD
View
Price last confirmed 35 days ago
Retailer 7
-
$5,661 NZD
$3,185 USD
View
Price last confirmed 18 days ago
B+
Retailer 8
-
$5,703 NZD
$3,209 USD
View
B+
Retailer 9
-
$5,746 NZD
$3,233 USD
View
B+
Retailer 10
-
$5,843 NZD
£2,589 GBP
View
B+
Retailer 11
-
$6,043 NZD
€3,238 EUR
View
Retailer 12
-
$6,530 NZD
$3,674 USD
View
Price last confirmed 35 days ago
Retailer 13
-
$6,530 NZD
$3,674 USD
View
Price last confirmed 49 days ago
B+
Retailer 14
-
$6,750 NZD
ZAR 61,357 ZAR
View
B
Retailer 15
-
$9,184 NZD
£4,069 GBP
View
Most Expensive
NZ Jewellers
5da33c6a-fb2d-4105-aba0-07ed74d66d79 · Sep 30
$9,860 NZD
$5,548 USD
View
Price last confirmed 33 days ago
15 more retailers have this diamond
Prices start from $4,918 NZDSave up to $4,267 NZD

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
$4,918 NZD