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Heart|Natural|IGI

1.51ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 749558441

Shape and cutting style on the report: Heart brilliant

Certificate IGI 749558441

Diamond specifications and retailer prices

From $3,495 USD
As of November 6, 2026
Save $3,426 USD (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,921 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 749558441. Listed at 17 retailers as of November 5, 2026, with prices from $3,495 to $6,921, a $3,426 spread on the same certified stone. NZ Jewellers lists it at $6,921. 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°
Pavilion angle38.9°
OriginNatural
Grading LabIGI
CertificateIGI 749558441
Dimensions7.12 × 7.87 × 4.47 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Top View
7.12 mm7.87 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 749558441
Side View
Table 60.0%Crown 34°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 56.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,921 USD|Low: $3,666 USD|High: $6,921 USD|Avg: $4,787 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$3,666 USD
Retailer 2$3,801 USD
Retailer 9$3,972 USD
Retailer 4$4,098 USD
Retailer 3$4,487 USD
Retailer 10$4,583 USD
Retailer 7$4,711 USD
Retailer 5$4,848 USD
Retailer 6$6,643 USD
NZ Jewellers$6,921 USD

30 data points across 10 retailers

17 retailers$3,495 USD to $6,921 USD

B+
Cheapest Retailer
-
$3,495 USD
B+
Retailer 2
-
$3,574 USD
View
B+
Retailer 3
-
$3,666 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,790 USD
View
B+
Retailer 5
-
$3,801 USD
View
B+
Retailer 6
-
$3,911 USD
View
B+
Retailer 7
-
$3,972 USD
View
B+
Retailer 8
-
$3,972 USD
View
Retailer 9
-
$3,972 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,098 USD
View
B
Retailer 11
-
$4,119 USD
View
B
Retailer 12
-
$4,487 USD
View
B
Retailer 13
-
$4,583 USD
View
B
Retailer 14
-
$4,848 USD
View
B
Retailer 15
-
$5,899 USD
View
B
Retailer 16
-
$6,643 USD
View
Most Expensive
C
NZ Jewellers
0ada1b4f-21ab-4fcf-8be3-23a729e1c4a5 · Nov 5
$6,921 USD
View
16 more retailers have this diamond
Prices start from $3,495 USDSave up to $3,426 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.

B+
1.51ct Heart
$3,495 USD