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Heart|Natural|IGI

1.51ct J SI2 Heart Natural Diamond

VG • J/SI2 • IGI 737595032

Shape and cutting style on the report: Heart brilliant

Certificate IGI 737595032

Diamond specifications and retailer prices

From $4,209 NZD
$2,368 USD
As of October 31, 2026
Save $5,614 NZD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,823 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct 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 very-good cut grade and certified by IGI 737595032. Listed at 12 retailers as of October 30, 2026, with prices from $4,209 to $9,823, a $5,614 spread on the same certified stone. NZ Jewellers lists it at $9,823. 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

1.51
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.6°
Pavilion angle42.4°
OriginNatural
Grading LabIGI
CertificateIGI 737595032
Dimensions6.83 × 8.02 × 4.89 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Top View
6.83 mm8.02 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 737595032
Side View
Table 58.0%Crown 35.6°Girdle: STK-THKPavilion 42.4°Culet: NoneDepth 61.0%

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: $9,823 NZD|Low: $4,097 NZD|High: $10,125 NZD|Avg: $5,628 NZD|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10$4,209 NZD
Retailer 13$4,337 NZD
Retailer 9$4,566 NZD
Retailer 6$4,645 NZD
Retailer 3$4,843 NZD
Retailer 4$4,843 NZD
Retailer 2$4,879 NZD
Retailer 7$4,949 NZD
Retailer 11$4,951 NZD
Retailer 12$5,421 NZD
Retailer 5$5,763 NZD
Retailer 8$8,232 NZD
NZ Jewellers$9,823 NZD

45 data points across 13 retailers

12 retailers$4,209 NZD to $9,823 NZD

A
Cheapest Retailer
-
$4,209 NZD
$2,368 USD
A
Retailer 2
-
$4,337 NZD
$2,440 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,566 NZD
$2,569 USD
View
A
Retailer 4
-
$4,645 NZD
£2,058 GBP
View
B+
Retailer 5
-
$4,843 NZD
$2,725 USD
View
B+
Retailer 6
-
$4,843 NZD
$2,725 USD
View
A
Retailer 7
-
$4,879 NZD
$2,745 USD
View
B+
Retailer 8
-
$4,949 NZD
$2,785 USD
View
B+
Retailer 9
-
$4,951 NZD
$2,785 USD
View
B+
Retailer 10
-
$5,421 NZD
$3,050 USD
View
B
Retailer 11
-
$8,232 NZD
£3,647 GBP
View
Most Expensive
B
NZ Jewellers
c0fb1cf0-8e2f-4bab-8937-feac363ca609 · Oct 30
$9,823 NZD
$5,527 USD
View
11 more retailers have this diamond
Prices start from $4,209 NZDSave up to $5,614 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
1.51ct Heart
$4,209 NZD