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Heart|Natural|IGI

1.51ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 440097543

Shape and cutting style on the report: Heart brilliant

Certificate IGI 440097543

Diamond specifications and retailer prices

From $6,131 NZD
As of November 5, 2026
Save $6,009 NZD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,140 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 440097543. Listed at 14 retailers as of November 5, 2026, with prices from $6,131 to $12,140, a $6,009 spread on the same certified stone. NZ Jewellers lists it at $12,140. 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
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 440097543
Dimensions7.04 × 8.01 × 4.73 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Top View
7.04 mm8.01 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 440097543
Side View
Table 58.0%Crown 35.4°Girdle: THN-THKPavilion 40.3°Culet: NoneDepth 59.1%

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 5
Current: $12,140 NZD|Low: $5,895 NZD|High: $12,140 NZD|Avg: $7,832 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3$6,303 NZD
Retailer 12$6,431 NZD
Retailer 4$6,665 NZD
Retailer 2$6,667 NZD
Retailer 9$6,968 NZD
Retailer 11$6,968 NZD
Retailer 5$7,189 NZD
Retailer 10$7,235 NZD
Retailer 8$8,040 NZD
Retailer 6$8,505 NZD
Retailer 7$11,653 NZD
NZ Jewellers$12,140 NZD

33 data points across 12 retailers

14 retailers$6,131 NZD to $12,140 NZD

B+
Cheapest Retailer
-
$6,131 NZD
B+
Retailer 2
-
$6,303 NZD
View
B+
Retailer 3
-
$6,431 NZD
View
Final sale: no returns
B+
Retailer 4
-
$6,665 NZD
View
B+
Retailer 5
-
$6,667 NZD
View
Retailer 6
-
$6,968 NZD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$6,968 NZD
View
B+
Retailer 8
-
$7,189 NZD
View
B
Retailer 9
-
$7,232 NZD
View
B
Retailer 10
-
$7,235 NZD
View
B
Retailer 11
-
$8,040 NZD
View
B
Retailer 12
-
$8,505 NZD
View
C
Retailer 13
-
$11,653 NZD
View
Most Expensive
C
NZ Jewellers
c893162e-1be4-4059-bbee-f28f78242cca · Nov 5
$12,140 NZD
$6,730 USD
View
13 more retailers have this diamond
Prices start from $6,131 NZDSave up to $6,009 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.

B+
1.51ct Heart
$6,131 NZD