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Heart|Natural|IGI

1.57ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 742527632

Shape and cutting style on the report: Heart brilliant

Certificate IGI 742527632

Diamond specifications and retailer prices

From $3,004 SGD
As of November 6, 2026
Save $3,387 SGD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,011 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.57ct natural heart diamond

This 1.57ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 742527632. Listed at 14 retailers as of November 4, 2026, with a 113% 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

1.57
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 742527632
Dimensions6.65 × 8.19 × 4.92 mm
L/W Ratio1.23
Girdle conditionFaceted
Culet sizePointed
Top View
6.65 mm8.19 mm1.57 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 742527632
Side View
Table 62.0%Crown 35.2°Girdle: STK-THKPavilion 41.8°Culet: NoneDepth 60.1%

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 6
Current: $3,004 SGD|Low: $3,004 SGD|High: $6,485 SGD|Avg: $4,158 SGD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$3,004 SGD
Retailer 7$3,435 SGD
Retailer 6$3,545 SGD
Retailer 2$3,667 SGD
Retailer 3$4,129 SGD
Retailer 4$4,677 SGD
Retailer 5$6,391 SGD

30 data points across 7 retailers

14 retailers$3,004 SGD to $6,391 SGD

A
Cheapest Retailer
-
$3,004 SGD
B+
Retailer 2
-
$3,431 SGD
View
B+
Retailer 3
-
$3,435 SGD
View
B+
Retailer 4
-
$3,545 SGD
View
A
Retailer 5
-
$3,667 SGD
View
Retailer 6
-
$3,832 SGD
View
Price last confirmed 30 days ago
Retailer 7
-
$3,832 SGD
View
Price last confirmed 30 days ago
Retailer 8
-
$3,979 SGD
View
Price last confirmed 37 days ago
B+
Retailer 9
-
$4,014 SGD
View
B+
Retailer 10
-
$4,129 SGD
View
Retailer 11
-
$4,422 SGD
View
Price last confirmed 39 days ago
B+
Retailer 12
-
$4,677 SGD
View
B
Retailer 13
-
$6,391 SGD
View
Most Expensive
NZ Jewellers
fc17d06e-797f-4cfc-ba76-2879ecdbce04 · Sep 30
$8,011 SGD
$6,251 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $3,004 SGDSave up to $3,387 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
1.57ct Heart
$3,004 SGD