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Heart|Natural|IGI

1.58ct G SI1 Heart Natural Diamond

VG • G/SI1 • IGI 813629879

Shape and cutting style on the report: Heart brilliant

Certificate IGI 813629879

Diamond specifications and retailer prices

From $4,954 AUD
As of November 4, 2026
Save $4,855 AUD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,809 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.58ct natural heart diamond

This 1.58ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 813629879. Listed at 12 retailers as of November 4, 2026, with prices from $4,954 to $9,809, a $4,855 spread on the same certified stone. NZ Jewellers lists it at $9,809. 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

1.58
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.3°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 813629879
Dimensions7.20 × 8.11 × 4.66 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
7.20 mm8.11 mm1.58 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 813629879
Side View
Table 63.0%Crown 35.3°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 57.5%

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: $5,276 AUD|Low: $4,954 AUD|High: $9,530 AUD|Avg: $6,414 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$4,954 AUD
Retailer 1$5,276 AUD
Retailer 6$5,385 AUD
Retailer 2$5,809 AUD
Retailer 7$5,846 AUD
Retailer 3$6,872 AUD
Retailer 4$9,415 AUD

43 data points across 7 retailers

12 retailers$4,954 AUD to $9,809 AUD

A
Cheapest Retailer
-
$4,954 AUD
A
Retailer 2
-
$5,276 AUD
View
A
Retailer 3
-
$5,385 AUD
View
Retailer 4
-
$5,631 AUD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$5,631 AUD
View
A
Retailer 6
-
$5,809 AUD
View
A
Retailer 7
-
$5,843 AUD
View
A
Retailer 8
-
$5,846 AUD
View
B+
Retailer 9
-
$6,497 AUD
View
B+
Retailer 10
-
$6,872 AUD
View
B+
Retailer 11
-
$9,415 AUD
View
Most Expensive
B
NZ Jewellers
e8aa68b6-7ad4-4d5b-a5ad-e9eb4c0155b9 · Nov 5
$9,809 AUD
$6,740 USD
View
11 more retailers have this diamond
Prices start from $4,954 AUDSave up to $4,855 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
1.58ct Heart
$4,954 AUD