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Heart|Natural|GIA

1.02ct J I1 Heart Natural Diamond

J/I1 • GIA 6431229799

Certificate GIA 6431229799

Diamond specifications and retailer prices

From $2,223 AUD
HK$12,200 HKD
As of October 31, 2026
Save $1,931 AUD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,358 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and I1 clarity (included) and certified by GIA 6431229799. Listed at 8 retailers as of October 31, 2026, with a 87% 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

1.02
Carat
J
Colour
I1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6431229799
Dimensions6.27 × 6.60 × 3.86 mm
L/W Ratio1.05
Top View
6.27 mm6.60 mm1.02 ctJ / I1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6431229799
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,785 AUD|Low: $2,205 AUD|High: $4,154 AUD|Avg: $3,011 AUD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3$2,223 AUD
Retailer 2$2,223 AUD
Retailer 1$2,785 AUD
Retailer 5$3,041 AUD
Retailer 6$3,619 AUD
Retailer 4$4,154 AUD

43 data points across 6 retailers

8 retailers$2,223 AUD to $4,154 AUD

B+
Cheapest Retailer
-
$2,223 AUD
HK$12,200 HKD
B+
Retailer 2
-
$2,223 AUD
₹148,742 INR
View
B
Retailer 3
-
$2,785 AUD
$1,956 USD
View
C
Retailer 4
-
$3,041 AUD
$2,136 USD
View
C
Retailer 5
-
$3,041 AUD
$2,136 USD
View
C
Retailer 6
-
$3,509 AUD
$2,465 USD
View
C
Retailer 7
-
$4,154 AUD
€2,779 EUR
View
Most Expensive
NZ Jewellers
ef574da2-d79b-4d5b-8bf4-f24656aec440 · Oct 30
$6,358 AUD
$4,466 USD
View
Price under review
7 more retailers have this diamond
Prices start from $2,223 AUDSave up to $1,931 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.

B+
1.02ct Heart
$2,223 AUD