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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 €1,398 EUR
HK$12,200 HKD
As of November 1, 2026
Save €1,214 EUR (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €3,997 EUR 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
Color
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: €1,751 EUR|Low: €1,386 EUR|High: €2,612 EUR|Avg: €1,894 EUR|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3€1,398 EUR
Retailer 2€1,398 EUR
Retailer 1€1,751 EUR
Retailer 5€1,912 EUR
Retailer 6€2,275 EUR
Retailer 4€2,612 EUR

42 data points across 6 retailers

8 retailers€1,398 EUR to €2,612 EUR

B+
Cheapest Retailer
-
€1,398 EUR
HK$12,200 HKD
B+
Retailer 2
-
€1,398 EUR
₹148,742 INR
View
B
Retailer 3
-
€1,751 EUR
$1,956 USD
View
C
Retailer 4
-
€1,912 EUR
$2,136 USD
View
C
Retailer 5
-
€1,912 EUR
$2,136 USD
View
C
Retailer 6
-
€2,206 EUR
$2,465 USD
View
C
Retailer 7
-
€2,612 EUR
View
Most Expensive
NZ Jewellers
ef574da2-d79b-4d5b-8bf4-f24656aec440 · Oct 30
€3,997 EUR
$4,466 USD
View
Price under review
7 more retailers have this diamond
Prices start from €1,398 EURSave up to €1,214 EUR

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
€1,398 EUR