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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 $2,368 USD
As of October 31, 2026
Save $3,159 USD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,527 USD 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 $2,368 to $5,527, a $3,159 spread on the same certified stone. NZ Jewellers lists it at $5,527. 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
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: $5,527 USD|Low: $2,305 USD|High: $5,697 USD|Avg: $3,162 USD|-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 1, 2026
Retailer 9$2,368 USD
Retailer 12$2,440 USD
Retailer 8$2,569 USD
Retailer 6$2,614 USD
Retailer 4$2,725 USD
Retailer 13$2,725 USD
Retailer 2$2,785 USD
Retailer 10$2,785 USD
Retailer 3$2,830 USD
Retailer 11$3,050 USD
Retailer 5$3,243 USD
Retailer 7$4,632 USD
NZ Jewellers$5,527 USD

45 data points across 13 retailers

12 retailers$2,368 USD to $5,527 USD

A
Cheapest Retailer
-
$2,368 USD
A
Retailer 2
-
$2,440 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,569 USD
View
A
Retailer 4
-
$2,614 USD
£2,058 GBP
View
B+
Retailer 5
-
$2,725 USD
View
B+
Retailer 6
-
$2,725 USD
View
B+
Retailer 7
-
$2,785 USD
View
B+
Retailer 8
-
$2,785 USD
View
B+
Retailer 9
-
$2,830 USD
View
B+
Retailer 10
-
$3,050 USD
View
B
Retailer 11
-
$4,632 USD
£3,647 GBP
View
Most Expensive
B
NZ Jewellers
c0fb1cf0-8e2f-4bab-8937-feac363ca609 · Oct 30
$5,527 USD
View
11 more retailers have this diamond
Prices start from $2,368 USDSave up to $3,159 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
$2,368 USD