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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 $4,353 SGD
$3,404 USD
As of November 1, 2026
Save $4,266 SGD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,620 SGD at NZ Jewellers · As of November 3, 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 1, 2026, with prices from $4,353 to $8,620, a $4,266 spread on the same certified stone. NZ Jewellers lists it at $8,620. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,155 SGD|Low: $4,353 SGD|High: $8,374 SGD|Avg: $5,675 SGD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 5$4,353 SGD
Retailer 2$4,662 SGD
Retailer 6$4,732 SGD
Retailer 7$5,137 SGD
Retailer 1$5,155 SGD
Retailer 8$5,709 SGD
Retailer 4$6,081 SGD
Retailer 3$8,274 SGD

42 data points across 8 retailers

12 retailers$4,353 SGD to $8,620 SGD

A
Cheapest Retailer
-
$4,353 SGD
$3,404 USD
A
Retailer 2
-
$4,662 SGD
£2,870 GBP
View
A
Retailer 3
-
$4,732 SGD
$3,700 USD
View
A
Retailer 4
-
$4,948 SGD
$3,869 USD
View
A
Retailer 5
-
$4,948 SGD
$3,869 USD
View
A
Retailer 6
-
$5,135 SGD
$4,015 USD
View
A
Retailer 7
-
$5,137 SGD
$4,017 USD
View
A
Retailer 8
-
$5,155 SGD
£3,174 GBP
View
B+
Retailer 9
-
$5,709 SGD
$4,464 USD
View
B+
Retailer 10
-
$6,081 SGD
ZAR 76,820 ZAR
View
B+
Retailer 11
-
$8,274 SGD
£5,094 GBP
View
Most Expensive
B
NZ Jewellers
e8aa68b6-7ad4-4d5b-a5ad-e9eb4c0155b9 · Nov 3
$8,620 SGD
$6,740 USD
View
11 more retailers have this diamond
Prices start from $4,353 SGDSave up to $4,266 SGD

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
$4,353 SGD