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Heart|Natural|IGI

1.00ct J I1 Heart Natural Diamond

GD • J/I1 • IGI 578343737

Shape and cutting style on the report: Heart brilliant

Certificate IGI 578343737

Diamond specifications and retailer prices

From €916 EUR
$1,023 USD
As of November 1, 2026
Save €1,418 EUR (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €2,333 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and I1 clarity (included), with a standard cut grade and certified by IGI 578343737. Listed at 7 retailers as of October 30, 2026, with prices from €916 to €2,333, a €1,418 spread on the same certified stone. NZ Jewellers lists it at €2,333. 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

1.00
Carat
J
Color
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle43.8°
Pavilion angle33.5°
OriginNatural
Grading LabIGI
CertificateIGI 578343737
Dimensions6.45 × 6.69 × 3.67 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
6.45 mm6.69 mm1.00 ctJ / I1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI 578343737
Side View
Table 55.0%Crown 43.8°Girdle: THK-ETKPavilion 33.5°Culet: NoneDepth 56.9%

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: €2,333 EUR|Low: €725 EUR|High: €2,333 EUR|Avg: €1,161 EUR|+1.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8€725 EUR
Retailer 6€916 EUR
Retailer 3€957 EUR
Retailer 5€957 EUR
Retailer 4€994 EUR
Retailer 7€1,104 EUR
Retailer 2€1,342 EUR
NZ Jewellers€2,333 EUR

16 data points across 8 retailers

7 retailers€916 EUR to €2,333 EUR

B+
Cheapest Retailer
-
€916 EUR
$1,023 USD
B+
Retailer 2
-
€957 EUR
$1,069 USD
View
B+
Retailer 3
-
€957 EUR
$1,069 USD
View
B+
Retailer 4
-
€994 EUR
$1,110 USD
View
B+
Retailer 5
-
€1,104 EUR
$1,233 USD
View
B+
Retailer 6
-
€1,342 EUR
View
Most Expensive
C
NZ Jewellers
166d80e0-3a37-4f16-afa1-cb30f74726d0 · Oct 30
€2,333 EUR
$2,607 USD
View
6 more retailers have this diamond
Prices start from €916 EURSave up to €1,418 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+
1.00ct Heart
€916 EUR