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Heart|Natural|IGI

1.51ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 773617467

Shape and cutting style on the report: Heart brilliant

Certificate IGI 773617467

Diamond specifications and retailer prices

From $3,119 NZD
As of November 4, 2026
Save $5,233 NZD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,352 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 773617467. Listed at 14 retailers as of November 4, 2026, with prices from $3,119 to $8,352, a $5,233 spread on the same certified stone. NZ Jewellers lists it at $8,352. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle39.6°
OriginNatural
Grading LabIGI
CertificateIGI 773617467
Dimensions6.46 × 7.80 × 5.02 mm
L/W Ratio1.21
Girdle conditionFaceted
Top View
6.46 mm7.80 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 773617467
Side View
Table 56.0%Crown 39°Girdle: STK-THKPavilion 39.6°CuletDepth 64.4%

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 4
Current: $8,352 NZD|Low: $3,119 NZD|High: $8,744 NZD|Avg: $4,486 NZD|+6.7%
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 6, 2026
Retailer 11$3,119 NZD
Retailer 10$3,238 NZD
Retailer 2$3,321 NZD
Retailer 8$3,424 NZD
Retailer 5$3,480 NZD
Retailer 13$3,583 NZD
Retailer 4$3,584 NZD
Retailer 6$3,671 NZD
Retailer 7$3,781 NZD
Retailer 3$3,951 NZD
Retailer 9$4,178 NZD
Retailer 12$5,980 NZD
NZ Jewellers$8,352 NZD

38 data points across 13 retailers

14 retailers$3,119 NZD to $8,352 NZD

A
Cheapest Retailer
-
$3,119 NZD
A
Retailer 2
-
$3,238 NZD
View
A
Retailer 3
-
$3,321 NZD
View
A
Retailer 4
-
$3,424 NZD
View
B+
Retailer 5
-
$3,480 NZD
View
B+
Retailer 6
-
$3,583 NZD
View
Retailer 7
-
$3,584 NZD
View
Price last confirmed 9 days ago
Retailer 8
-
$3,584 NZD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$3,671 NZD
View
B+
Retailer 10
-
$3,781 NZD
View
B+
Retailer 11
-
$3,951 NZD
View
B+
Retailer 12
-
$4,178 NZD
View
B+
Retailer 13
-
$5,980 NZD
View
Most Expensive
B
NZ Jewellers
adefc08f-653b-44a9-92f3-95acbb36c18e · Nov 5
$8,352 NZD
$4,630 USD
View
13 more retailers have this diamond
Prices start from $3,119 NZDSave up to $5,233 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
$3,119 NZD