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Heart|Natural|IGI

1.51ct K VS1 Heart Natural Diamond

VG • K/VS1 • IGI 657456097

Shape and cutting style on the report: Heart brilliant

Certificate IGI 657456097

Diamond specifications and retailer prices

From $4,284 NZD
As of November 6, 2026
Save $4,517 NZD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,034 NZD at NZ Jewellers · As of October 18, 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 657456097. Listed at 13 retailers as of November 4, 2026, with a 105% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.4°
Pavilion angle36.9°
OriginNatural
Grading LabIGI
CertificateIGI 657456097
Dimensions7.10 × 8.08 × 4.48 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Top View
7.10 mm8.08 mm1.51 ctK / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 657456097
Side View
Table 64.0%Crown 38.4°Girdle: MED-THKPavilion 36.9°Culet: NoneDepth 55.4%

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 6
Current: $4,284 NZD|Low: $4,284 NZD|High: $9,003 NZD|Avg: $6,013 NZD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$4,284 NZD
Retailer 7$5,015 NZD
Retailer 5$5,534 NZD
Retailer 2$5,686 NZD
Retailer 6$5,736 NZD
Retailer 3$6,442 NZD
Retailer 4$8,801 NZD

44 data points across 7 retailers

13 retailers$4,284 NZD to $8,801 NZD

A
Cheapest Retailer
-
$4,284 NZD
B+
Retailer 2
-
$5,009 NZD
View
B+
Retailer 3
-
$5,015 NZD
View
Retailer 4
-
$5,278 NZD
View
Price last confirmed 19 days ago
Retailer 5
-
$5,278 NZD
View
Price last confirmed 21 days ago
Retailer 6
-
$5,480 NZD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$5,534 NZD
View
A
Retailer 8
-
$5,686 NZD
View
B+
Retailer 9
-
$5,736 NZD
View
Retailer 10
-
$6,090 NZD
View
Price last confirmed 18 days ago
B+
Retailer 11
-
$6,442 NZD
View
B+
Retailer 12
-
$8,801 NZD
View
Most Expensive
NZ Jewellers
93e22198-f024-4f31-aed8-5d4890ccae80 · Oct 18
$11,034 NZD
$6,117 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from $4,284 NZDSave up to $4,517 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
$4,284 NZD