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Heart|Natural|IGI

1.20ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 743513531

Shape and cutting style on the report: Heart brilliant

Certificate IGI 743513531

Diamond specifications and retailer prices

From $2,631 AUD
As of November 6, 2026
Save $4,477 AUD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,108 AUD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 743513531. Listed at 14 retailers as of November 5, 2026, with prices from $2,631 to $7,108, a $4,477 spread on the same certified stone. NZ Jewellers lists it at $7,108. 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle37.4°
OriginNatural
Grading LabIGI
CertificateIGI 743513531
Dimensions6.81 × 7.47 × 4.11 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.81 mm7.47 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743513531
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 55.0%

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: $7,108 AUD|Low: $2,631 AUD|High: $7,108 AUD|Avg: $3,544 AUD
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
November 7, 2026
Retailer 4$2,631 AUD
Retailer 5$2,690 AUD
Retailer 7$2,826 AUD
Retailer 6$2,893 AUD
Retailer 11$2,914 AUD
Retailer 13$2,914 AUD
Retailer 3$2,969 AUD
Retailer 12$3,049 AUD
Retailer 2$3,209 AUD
Retailer 14$3,362 AUD
Retailer 9$3,556 AUD
Retailer 8$3,959 AUD
Retailer 10$5,091 AUD
NZ Jewellers$7,108 AUD

31 data points across 14 retailers

14 retailers$2,631 AUD to $7,108 AUD

A
Cheapest Retailer
-
$2,631 AUD
B+
Retailer 2
-
$2,690 AUD
View
Final sale: no returns
A
Retailer 3
-
$2,826 AUD
View
A
Retailer 4
-
$2,893 AUD
View
B+
Retailer 5
-
$2,914 AUD
View
Retailer 6
-
$2,914 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,969 AUD
View
B+
Retailer 8
-
$3,049 AUD
View
B+
Retailer 9
-
$3,209 AUD
View
B+
Retailer 10
-
$3,362 AUD
View
B+
Retailer 11
-
$3,556 AUD
View
B
Retailer 12
-
$3,959 AUD
View
B
Retailer 13
-
$5,091 AUD
View
Most Expensive
C
NZ Jewellers
045ecf2b-a6fe-4461-baf6-c2eeecaa63b2 · Nov 5
$7,108 AUD
$4,884 USD
View
13 more retailers have this diamond
Prices start from $2,631 AUDSave up to $4,477 AUD

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
$2,631 AUD