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Heart|Natural|IGI

1.20ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 749558736

Shape and cutting style on the report: Heart brilliant

Certificate IGI 749558736

Diamond specifications and retailer prices

From $2,253 AUD
As of October 31, 2026
Save $4,855 AUD (68%) vs most expensive(unlock to see where)
16 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 749558736. Listed at 16 retailers as of October 31, 2026, with prices from $2,253 to $7,108, a $4,855 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 angle32.6°
Pavilion angle38.4°
OriginNatural
Grading LabIGI
CertificateIGI 749558736
Dimensions6.70 × 7.35 × 4.11 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.70 mm7.35 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 749558736
Side View
Table 62.0%Crown 32.6°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 55.9%

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: Oct 31
Current: $7,108 AUD|Low: $2,253 AUD|High: $7,108 AUD|Avg: $3,599 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
November 7, 2026
Retailer 9$2,253 AUD
Retailer 4$2,690 AUD
Retailer 6$2,826 AUD
Retailer 10$2,914 AUD
Retailer 12$2,914 AUD
Retailer 11$3,049 AUD
Retailer 5$3,209 AUD
Retailer 8$3,556 AUD
Retailer 7$3,818 AUD
Retailer 3$4,302 AUD
Retailer 2$5,076 AUD
NZ Jewellers$7,108 AUD

32 data points across 12 retailers

16 retailers$2,253 AUD to $7,108 AUD

A
Cheapest Retailer
-
$2,253 AUD
B+
Retailer 2
-
$2,631 AUD
View
B+
Retailer 3
-
$2,690 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,826 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
-
$3,115 AUD
View
B+
Retailer 10
-
$3,209 AUD
View
Retailer 11
-
$3,362 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$3,556 AUD
View
B
Retailer 13
-
$3,818 AUD
View
B
Retailer 14
-
$4,302 AUD
View
B
Retailer 15
-
$5,076 AUD
View
Most Expensive
C
NZ Jewellers
ede8d819-5314-4d83-b522-5ab9ddfebec2 · Nov 5
$7,108 AUD
$4,884 USD
View
15 more retailers have this diamond
Prices start from $2,253 AUDSave up to $4,855 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
$2,253 AUD