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 $2,675 USD
As of November 5, 2026
Save $3,569 USD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,244 USD 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 $2,675 to $6,244, a $3,569 spread on the same certified stone. NZ Jewellers lists it at $6,244. 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
Color
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
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Price History

Last verified: Nov 5
Current: $6,244 USD|Low: $2,675 USD|High: $6,244 USD|Avg: $3,426 USD|+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$2,675 USD
Retailer 12$2,756 USD
Retailer 4$2,775 USD
Retailer 6$2,852 USD
Retailer 2$2,858 USD
Retailer 10$2,986 USD
Retailer 5$3,096 USD
Retailer 14$3,101 USD
Retailer 7$3,129 USD
Retailer 8$3,218 USD
Retailer 3$3,446 USD
Retailer 9$3,645 USD
Retailer 13$4,980 USD
NZ Jewellers$6,244 USD

15 data points across 14 retailers

14 retailers$2,675 USD to $6,244 USD

A
Cheapest Retailer
-
$2,675 USD
A
Retailer 2
-
$2,756 USD
View
Final sale: no returns
A
Retailer 3
-
$2,775 USD
View
B+
Retailer 4
-
$2,852 USD
View
A
Retailer 5
-
$2,858 USD
View
B+
Retailer 6
-
$2,986 USD
View
Retailer 7
-
$3,096 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,101 USD
View
B+
Retailer 9
-
$3,129 USD
View
B+
Retailer 10
-
$3,218 USD
View
B+
Retailer 11
-
$3,446 USD
View
B+
Retailer 12
-
$3,645 USD
View
B
Retailer 13
-
$4,980 USD
View
Most Expensive
C
NZ Jewellers
dbf0c786-3f3a-41e0-88f3-4c80d0f0fa6c · Nov 5
$6,244 USD
View
13 more retailers have this diamond
Prices start from $2,675 USDSave up to $3,569 USD

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
$2,675 USD