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Heart|Natural|IGI

1.51ct L SI1 Heart Natural Diamond

VG • L/SI1 • IGI 646466581

Shape and cutting style on the report: Heart brilliant

Certificate IGI 646466581

Diamond specifications and retailer prices

From $3,532 NZD
As of November 6, 2026
Save $5,114 NZD (59%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,646 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 646466581. Listed at 10 retailers as of November 5, 2026, with prices from $3,532 to $8,646, a $5,114 spread on the same certified stone. NZ Jewellers lists it at $8,646. 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
L
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.6°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 646466581
Dimensions6.61 × 7.59 × 4.85 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizeNone
Top View
6.61 mm7.59 mm1.51 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 646466581
Side View
Table 60.0%Crown 37.6°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 63.9%

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 6
Current: $8,646 NZD|Low: $3,532 NZD|High: $8,646 NZD|Avg: $4,791 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$3,532 NZD
Retailer 9$4,057 NZD
Retailer 3$4,066 NZD
Retailer 6$4,136 NZD
Retailer 8$4,140 NZD
Retailer 7$4,328 NZD
Retailer 4$4,773 NZD
Retailer 5$5,047 NZD
NZ Jewellers$8,646 NZD

45 data points across 9 retailers

10 retailers$3,532 NZD to $8,646 NZD

A
Cheapest Retailer
-
$3,532 NZD
B+
Retailer 2
-
$4,057 NZD
View
B+
Retailer 3
-
$4,066 NZD
View
B+
Retailer 4
-
$4,136 NZD
View
B+
Retailer 5
-
$4,140 NZD
View
B+
Retailer 6
-
$4,328 NZD
View
B+
Retailer 7
-
$4,387 NZD
View
B
Retailer 8
-
$4,773 NZD
View
B
Retailer 9
-
$5,047 NZD
View
Most Expensive
C
NZ Jewellers
f696f278-9fc6-45d8-a96f-69b938fdd517 · Nov 5
$8,646 NZD
$4,793 USD
View
9 more retailers have this diamond
Prices start from $3,532 NZDSave up to $5,114 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
$3,532 NZD