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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 $6,050 NZD
$3,404 USD
As of November 1, 2026
Save $5,929 NZD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,979 NZD at NZ Jewellers · As of October 30, 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 October 30, 2026, with prices from $6,050 to $11,979, a $5,929 spread on the same certified stone. NZ Jewellers lists it at $11,979. 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 1
Current: $6,478 NZD|Low: $6,050 NZD|High: $11,638 NZD|Avg: $7,891 NZD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5$6,050 NZD
Retailer 1$6,478 NZD
Retailer 6$6,576 NZD
Retailer 7$7,139 NZD
Retailer 2$7,165 NZD
Retailer 8$7,934 NZD
Retailer 4$8,451 NZD
Retailer 3$11,498 NZD

42 data points across 8 retailers

12 retailers$6,050 NZD to $11,979 NZD

A
Cheapest Retailer
-
$6,050 NZD
$3,404 USD
A
Retailer 2
-
$6,478 NZD
£2,870 GBP
View
A
Retailer 3
-
$6,576 NZD
$3,700 USD
View
A
Retailer 4
-
$6,876 NZD
$3,869 USD
View
A
Retailer 5
-
$6,876 NZD
$3,869 USD
View
A
Retailer 6
-
$7,136 NZD
$4,015 USD
View
A
Retailer 7
-
$7,139 NZD
$4,017 USD
View
A
Retailer 8
-
$7,165 NZD
£3,174 GBP
View
B+
Retailer 9
-
$7,934 NZD
$4,464 USD
View
B+
Retailer 10
-
$8,451 NZD
ZAR 76,820 ZAR
View
B+
Retailer 11
-
$11,498 NZD
£5,094 GBP
View
Most Expensive
B
NZ Jewellers
e8aa68b6-7ad4-4d5b-a5ad-e9eb4c0155b9 · Oct 30
$11,979 NZD
$6,740 USD
View
11 more retailers have this diamond
Prices start from $6,050 NZDSave up to $5,929 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
1.58ct Heart
$6,050 NZD