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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

GD • I/SI2 • GIA 6435807278

Certificate GIA 6435807278

Diamond specifications and retailer prices

From €1,089 EUR
As of November 7, 2026
Save €2,487 EUR (70%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €3,576 EUR at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6435807278. Listed at 19 retailers as of November 7, 2026, with prices from €1,089 to €3,576, a €2,487 spread on the same certified stone. NZ Jewellers lists it at €3,576. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6435807278
Dimensions6.83 × 5.51 × 3.99 mm
L/W Ratio1.24
Top View
6.83 mm5.51 mm1.00 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435807278
Side View
Table 71.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 58.4%

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 7
Current: €3,576 EUR|Low: €1,089 EUR|High: €3,576 EUR|Avg: €1,751 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 15€1,089 EUR
Retailer 9€1,147 EUR
Retailer 8€1,353 EUR
Retailer 5€1,446 EUR
Retailer 3€1,466 EUR
Retailer 7€1,466 EUR
Retailer 13€1,512 EUR
Retailer 11€1,514 EUR
Retailer 2€1,523 EUR
Retailer 4€1,534 EUR
Retailer 16€1,588 EUR
Retailer 10€1,621 EUR
Retailer 6€1,692 EUR
Retailer 12€1,990 EUR
Retailer 14€2,562 EUR
NZ Jewellers€3,576 EUR

35 data points across 16 retailers

19 retailers€1,089 EUR to €3,576 EUR

B+
Cheapest Retailer
-
€1,089 EUR
A
Retailer 2
-
€1,147 EUR
View
B+
Retailer 3
-
€1,353 EUR
View
Final sale: no returns
B+
Retailer 4
-
€1,359 EUR
View
B+
Retailer 5
-
€1,446 EUR
View
B+
Retailer 6
-
€1,466 EUR
View
B+
Retailer 7
-
€1,466 EUR
View
B+
Retailer 8
-
€1,512 EUR
View
B+
Retailer 9
-
€1,514 EUR
View
B+
Retailer 10
-
€1,523 EUR
View
B+
Retailer 11
-
€1,533 EUR
View
B+
Retailer 12
-
€1,534 EUR
View
B+
Retailer 13
-
€1,558 EUR
View
B+
Retailer 14
-
€1,588 EUR
View
B+
Retailer 15
-
€1,621 EUR
View
B+
Retailer 16
-
€1,692 EUR
View
B
Retailer 17
-
€1,990 EUR
View
B
Retailer 18
-
€2,562 EUR
View
Most Expensive
C
NZ Jewellers
1426f83e-0dc9-4c35-a7e8-399d9e5d8dbe · Nov 7
€3,576 EUR
$3,993 USD
View
18 more retailers have this diamond
Prices start from €1,089 EURSave up to €2,487 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.

A
1.00ct Heart
€1,089 EUR