CaratHunter
Plans
Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 2245065963

Certificate GIA 2245065963

Diamond specifications and retailer prices

From $2,253 AUD
As of November 6, 2026
Save $4,142 AUD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,395 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2245065963. Listed at 10 retailers as of November 5, 2026, with prices from $2,253 to $6,395, a $4,142 spread on the same certified stone. NZ Jewellers lists it at $6,395. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.3°
OriginNatural
Grading LabGIA
CertificateGIA 2245065963
Dimensions6.62 × 7.00 × 4.26 mm
L/W Ratio1.06
Key to symbols
Twinning Wisp, Cloud, Needle
Top View
6.62 mm7.00 mm1.20 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245065963
Side View
Table 55.0%CrownGirdle: THK-VTKPavilion 36.3°Culet: NoneDepth 60.9%

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: Nov 6
Current: $6,395 AUD|Low: $2,253 AUD|High: $6,800 AUD|Avg: $3,977 AUD|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 8$2,253 AUD
Retailer 10$2,911 AUD
Retailer 3$2,968 AUD
Retailer 6$3,059 AUD
Retailer 2$3,160 AUD
Retailer 7$3,369 AUD
Retailer 4$4,152 AUD
Retailer 5$4,676 AUD
Retailer 9$5,426 AUD
NZ Jewellers$6,395 AUD

36 data points across 10 retailers

10 retailers$2,253 AUD to $6,395 AUD

A
Cheapest Retailer
-
$2,253 AUD
B+
Retailer 2
-
$2,911 AUD
View
B+
Retailer 3
-
$2,968 AUD
View
B+
Retailer 4
-
$3,059 AUD
View
B+
Retailer 5
-
$3,160 AUD
View
B
Retailer 6
-
$3,369 AUD
View
B
Retailer 7
-
$4,152 AUD
View
B
Retailer 8
-
$4,676 AUD
View
B
Retailer 9
-
$5,426 AUD
View
Most Expensive
B
NZ Jewellers
f2091801-974d-4289-8b1b-2a6c1561c8dd · Nov 5
$6,395 AUD
$4,394 USD
View
9 more retailers have this diamond
Prices start from $2,253 AUDSave up to $4,142 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