CaratHunter
Plans
Heart|Natural|IGI

1.51ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 801638972

Shape and cutting style on the report: Heart brilliant

Certificate IGI 801638972

Diamond specifications and retailer prices

From $4,825 NZD
As of November 5, 2026
Save $6,438 NZD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,264 NZD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 801638972. Listed at 14 retailers as of November 5, 2026, with prices from $4,825 to $11,264, a $6,438 spread on the same certified stone. NZ Jewellers lists it at $11,264. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle42°
OriginNatural
Grading LabIGI
CertificateIGI 801638972
Dimensions6.37 × 8.03 × 4.75 mm
L/W Ratio1.26
Girdle conditionFaceted
Top View
6.37 mm8.03 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638972
Side View
Table 61.0%Crown 34.8°Girdle: STK-THKPavilion 42°Culet: NoneDepth 59.2%

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: $11,264 NZD|Low: $4,825 NZD|High: $11,264 NZD|Avg: $6,180 NZD|+15.8%
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
Retailer 14
November 6, 2026
Retailer 11$4,825 NZD
Retailer 12$4,972 NZD
Retailer 4$5,006 NZD
Retailer 6$5,145 NZD
Retailer 2$5,156 NZD
Retailer 10$5,386 NZD
Retailer 5$5,585 NZD
Retailer 14$5,594 NZD
Retailer 7$5,644 NZD
Retailer 8$5,805 NZD
Retailer 3$6,216 NZD
Retailer 9$6,575 NZD
Retailer 13$8,983 NZD
NZ Jewellers$11,264 NZD

15 data points across 14 retailers

14 retailers$4,825 NZD to $11,264 NZD

A
Cheapest Retailer
-
$4,825 NZD
A
Retailer 2
-
$4,972 NZD
View
Final sale: no returns
A
Retailer 3
-
$5,006 NZD
View
B+
Retailer 4
-
$5,145 NZD
View
A
Retailer 5
-
$5,156 NZD
View
B+
Retailer 6
-
$5,386 NZD
View
Retailer 7
-
$5,585 NZD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$5,594 NZD
View
B+
Retailer 9
-
$5,644 NZD
View
B+
Retailer 10
-
$5,805 NZD
View
B+
Retailer 11
-
$6,216 NZD
View
B+
Retailer 12
-
$6,575 NZD
View
B
Retailer 13
-
$8,983 NZD
View
Most Expensive
C
NZ Jewellers
dbf0c786-3f3a-41e0-88f3-4c80d0f0fa6c · Nov 5
$11,264 NZD
$6,244 USD
View
13 more retailers have this diamond
Prices start from $4,825 NZDSave up to $6,438 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
$4,825 NZD