CaratHunter
Plans
Heart|Natural|IGI

1.20ct G SI1 Heart Natural Diamond

VG • G/SI1 • IGI 800626000

Shape and cutting style on the report: Heart brilliant

Certificate IGI 800626000

Diamond specifications and retailer prices

From $3,119 AUD
As of November 6, 2026
Save $4,098 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,217 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 800626000. Listed at 13 retailers as of November 5, 2026, with prices from $3,119 to $7,217, a $4,098 spread on the same certified stone. NZ Jewellers lists it at $7,217. 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.8°
OriginNatural
Grading LabIGI
CertificateIGI 800626000
Dimensions6.35 × 7.38 × 4.30 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizeNone
Top View
6.35 mm7.38 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 800626000
Side View
Table 62.0%Crown 36.6°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 58.3%

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: $7,217 AUD|Low: $3,119 AUD|High: $7,427 AUD|Avg: $4,043 AUD|-2.8%
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
November 7, 2026
Retailer 3$3,119 AUD
Retailer 4$3,186 AUD
Retailer 8$3,349 AUD
Retailer 5$3,355 AUD
Retailer 13$3,442 AUD
Retailer 10$3,452 AUD
Retailer 11$3,452 AUD
Retailer 6$3,612 AUD
Retailer 7$3,705 AUD
Retailer 12$3,983 AUD
Retailer 9$4,213 AUD
Retailer 2$6,015 AUD
NZ Jewellers$7,217 AUD

30 data points across 13 retailers

13 retailers$3,119 AUD to $7,217 AUD

A
Cheapest Retailer
-
$3,119 AUD
A
Retailer 2
-
$3,186 AUD
View
Final sale: no returns
B+
Retailer 3
-
$3,349 AUD
View
B+
Retailer 4
-
$3,355 AUD
View
B+
Retailer 5
-
$3,442 AUD
View
B+
Retailer 6
-
$3,452 AUD
View
Retailer 7
-
$3,452 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$3,612 AUD
View
B+
Retailer 9
-
$3,705 AUD
View
B+
Retailer 10
-
$3,983 AUD
View
B+
Retailer 11
-
$4,213 AUD
View
B
Retailer 12
-
$6,015 AUD
View
Most Expensive
B
NZ Jewellers
b104df6b-e2fb-4ddc-95b5-384121951bcc · Nov 5
$7,217 AUD
$4,959 USD
View
12 more retailers have this diamond
Prices start from $3,119 AUDSave up to $4,098 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
$3,119 AUD