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Heart|Natural|IGI

1.23ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 704515160

Shape and cutting style on the report: Heart brilliant

Certificate IGI 704515160

Diamond specifications and retailer prices

From $1,763 SGD
As of November 6, 2026
Save $2,972 SGD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,736 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 704515160. Listed at 15 retailers as of November 5, 2026, with prices from $1,763 to $4,736, a $2,972 spread on the same certified stone. NZ Jewellers lists it at $4,736. 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

1.23
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 704515160
Dimensions6.52 × 7.39 × 4.43 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Top View
6.52 mm7.39 mm1.23 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 704515160
Side View
Table 58.0%Crown 35.2°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 59.9%

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: $4,736 SGD|Low: $1,763 SGD|High: $4,878 SGD|Avg: $2,456 SGD|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 9$1,763 SGD
Retailer 10$1,772 SGD
Retailer 8$1,801 SGD
Retailer 11$1,854 SGD
Retailer 3$1,942 SGD
Retailer 7$2,001 SGD
Retailer 5$2,020 SGD
Retailer 6$2,026 SGD
Retailer 4$2,031 SGD
Retailer 12$2,085 SGD
Retailer 2$2,142 SGD
Retailer 13$2,207 SGD
Retailer 14$2,368 SGD
Retailer 15$3,391 SGD
NZ Jewellers$4,736 SGD

32 data points across 15 retailers

15 retailers$1,763 SGD to $4,736 SGD

A
Cheapest Retailer
-
$1,763 SGD
Final sale: no returns
A
Retailer 2
-
$1,772 SGD
View
A
Retailer 3
-
$1,801 SGD
View
A
Retailer 4
-
$1,854 SGD
View
A
Retailer 5
-
$1,942 SGD
View
Retailer 6
-
$2,001 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,020 SGD
View
B+
Retailer 8
-
$2,026 SGD
View
A
Retailer 9
-
$2,031 SGD
View
B+
Retailer 10
-
$2,085 SGD
View
A
Retailer 11
-
$2,142 SGD
View
B+
Retailer 12
-
$2,207 SGD
View
B+
Retailer 13
-
$2,368 SGD
View
B
Retailer 14
-
$3,391 SGD
View
Most Expensive
B
NZ Jewellers
8ef5a5f5-41e0-40cf-9bc2-8ee8a1456da3 · Nov 5
$4,736 SGD
$3,695 USD
View
14 more retailers have this diamond
Prices start from $1,763 SGDSave up to $2,972 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
1.23ct Heart
$1,763 SGD