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Heart|Natural|IGI

1.51ct K IF Heart Natural Diamond

VG • K/IF • IGI 738527953

Shape and cutting style on the report: Heart brilliant

Certificate IGI 738527953

Diamond specifications and retailer prices

From $3,783 AUD
As of November 2, 2026
Save $4,983 AUD (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,766 AUD at NZ Jewellers · As of November 3, 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 738527953. Listed at 7 retailers as of November 2, 2026, with prices from $3,783 to $8,766, a $4,983 spread on the same certified stone. NZ Jewellers lists it at $8,766. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle42.2°
OriginNatural
Grading LabIGI
CertificateIGI 738527953
Dimensions6.83 × 8.07 × 4.88 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Top View
6.83 mm8.07 mm1.51 ctK / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 738527953
Side View
Table 61.0%Crown 36.6°Girdle: MED-THKPavilion 42.2°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $8,766 AUD|Low: $3,783 AUD|High: $8,855 AUD|Avg: $5,301 AUD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2$3,783 AUD
Retailer 3$4,031 AUD
Retailer 5$4,193 AUD
Retailer 6$4,355 AUD
Retailer 7$4,366 AUD
Retailer 9$5,031 AUD
Retailer 8$5,129 AUD
Retailer 4$7,021 AUD
NZ Jewellers$8,766 AUD

30 data points across 9 retailers

7 retailers$3,783 AUD to $8,766 AUD

A
Cheapest Retailer
-
$3,783 AUD
A
Retailer 2
-
$4,031 AUD
View
A
Retailer 3
-
$4,193 AUD
View
A
Retailer 4
-
$4,355 AUD
View
A
Retailer 5
-
$4,366 AUD
View
Retailer 6
-
$7,021 AUD
View
Price last confirmed 11 days ago
Most Expensive
B
NZ Jewellers
bafdbc04-4b4b-49f9-a929-0196fa7d27c5 · Nov 3
$8,766 AUD
$6,023 USD
View
6 more retailers have this diamond
Prices start from $3,783 AUDSave up to $4,983 AUD

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
$3,783 AUD