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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 $2,771 NZD
HK$12,200 HKD
As of November 1, 2026
Save $2,407 NZD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,924 NZD 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: Nov 1
Current: $3,471 NZD|Low: $2,748 NZD|High: $5,177 NZD|Avg: $3,755 NZD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3$2,771 NZD
Retailer 2$2,771 NZD
Retailer 1$3,471 NZD
Retailer 5$3,790 NZD
Retailer 6$4,511 NZD
Retailer 4$5,177 NZD

42 data points across 6 retailers

8 retailers$2,771 NZD to $5,177 NZD

B+
Cheapest Retailer
-
$2,771 NZD
HK$12,200 HKD
B+
Retailer 2
-
$2,771 NZD
₹148,742 INR
View
B
Retailer 3
-
$3,471 NZD
$1,956 USD
View
C
Retailer 4
-
$3,790 NZD
$2,136 USD
View
C
Retailer 5
-
$3,790 NZD
$2,136 USD
View
C
Retailer 6
-
$4,374 NZD
$2,465 USD
View
C
Retailer 7
-
$5,177 NZD
€2,779 EUR
View
Most Expensive
NZ Jewellers
ef574da2-d79b-4d5b-8bf4-f24656aec440 · Oct 30
$7,924 NZD
$4,466 USD
View
Price under review
7 more retailers have this diamond
Prices start from $2,771 NZDSave up to $2,407 NZD

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
$2,771 NZD