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Heart|Natural|IGI

1.20ct J SI2 Heart Natural Diamond

VG • J/SI2 • IGI 788607840

Shape and cutting style on the report: Heart brilliant

Certificate IGI 788607840

Diamond specifications and retailer prices

From $2,372 NZD
As of November 6, 2026
Save $2,197 NZD (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,557 NZD at NZ Jewellers · As of September 18, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 788607840. Listed at 15 retailers as of November 2, 2026, with a 93% 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

1.20
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 788607840
Dimensions6.60 × 7.42 × 4.24 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Top View
6.60 mm7.42 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 788607840
Side View
Table 56.0%Crown 34.1°Girdle: THK-VTKPavilion 40.8°Culet: NoneDepth 57.1%

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 6
Current: $2,372 NZD|Low: $2,275 NZD|High: $4,766 NZD|Avg: $2,996 NZD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$2,372 NZD
Retailer 2$2,383 NZD
Retailer 7$2,688 NZD
Retailer 6$2,724 NZD
Retailer 5$2,729 NZD
Retailer 3$2,814 NZD
Retailer 8$3,198 NZD
Retailer 4$4,569 NZD

15 data points across 8 retailers

15 retailers$2,372 NZD to $4,569 NZD

A
Cheapest Retailer
-
$2,372 NZD
Final sale: no returns
A
Retailer 2
-
$2,383 NZD
View
Retailer 3
-
$2,688 NZD
View
Price last confirmed 53 days ago
Retailer 4
-
$2,688 NZD
View
Price last confirmed 36 days ago
Retailer 5
-
$2,688 NZD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$2,724 NZD
View
B+
Retailer 7
-
$2,729 NZD
View
Retailer 8
-
$2,812 NZD
View
Price last confirmed 36 days ago
B+
Retailer 9
-
$2,814 NZD
View
Retailer 10
-
$3,103 NZD
View
Price last confirmed 61 days ago
Retailer 11
-
$3,103 NZD
View
Price last confirmed 52 days ago
Retailer 12
-
$3,103 NZD
View
Price last confirmed 38 days ago
B
Retailer 13
-
$4,569 NZD
View
Retailer 14
-
$6,557 NZD
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
6f65f08b-1a75-4e65-a972-61815a910099 · Sep 18
$6,557 NZD
$3,635 USD
View
Price last confirmed 49 days ago
14 more retailers have this diamond
Prices start from $2,372 NZDSave up to $2,197 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
1.20ct Heart
$2,372 NZD