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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 $1,383 USD
As of November 6, 2026
Save $2,312 USD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,695 USD 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 $1,383 to $3,695, a $2,312 spread on the same certified stone. NZ Jewellers lists it at $3,695. 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
Color
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: $3,695 USD|Low: $1,383 USD|High: $3,806 USD|Avg: $1,920 USD|-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 6, 2026
Retailer 2$1,383 USD
Retailer 6$1,398 USD
Retailer 8$1,447 USD
Retailer 15$1,515 USD
Retailer 7$1,561 USD
Retailer 4$1,576 USD
Retailer 5$1,581 USD
Retailer 3$1,585 USD
Retailer 14$1,605 USD
Retailer 9$1,627 USD
Retailer 10$1,676 USD
Retailer 11$1,722 USD
Retailer 12$1,848 USD
Retailer 13$2,646 USD
NZ Jewellers$3,695 USD

33 data points across 15 retailers

15 retailers$1,383 USD to $3,695 USD

A
Cheapest Retailer
-
$1,383 USD
A
Retailer 2
-
$1,398 USD
View
Final sale: no returns
A
Retailer 3
-
$1,447 USD
View
A
Retailer 4
-
$1,515 USD
View
Retailer 5
-
$1,561 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,576 USD
View
B+
Retailer 7
-
$1,581 USD
View
A
Retailer 8
-
$1,585 USD
View
B+
Retailer 9
-
$1,605 USD
View
B+
Retailer 10
-
$1,627 USD
View
A
Retailer 11
-
$1,676 USD
View
B+
Retailer 12
-
$1,722 USD
View
B+
Retailer 13
-
$1,848 USD
View
B
Retailer 14
-
$2,646 USD
View
Most Expensive
B
NZ Jewellers
8ef5a5f5-41e0-40cf-9bc2-8ee8a1456da3 · Nov 5
$3,695 USD
View
14 more retailers have this diamond
Prices start from $1,383 USDSave up to $2,312 USD

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
$1,383 USD