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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 5553588987

Certificate GIA 5553588987

Diamond specifications and retailer prices

From €1,218 EUR
$1,361 USD
As of November 1, 2026
Save €2,795 EUR (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,014 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553588987. Listed at 14 retailers as of October 30, 2026, with prices from €1,218 to €4,014, a €2,795 spread on the same certified stone. NZ Jewellers lists it at €4,014. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553588987
Dimensions6.86 × 5.79 × 4.15 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Needle
Top View
6.86 mm5.79 mm1.00 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553588987
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.5%

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 1
Current: €4,014 EUR|Low: €1,136 EUR|High: €4,014 EUR|Avg: €1,845 EUR|+0.9%
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
Retailer 17
Retailer 18
November 1, 2026
Retailer 8€1,218 EUR
Retailer 6€1,313 EUR
Retailer 5€1,363 EUR
Retailer 14€1,491 EUR
Retailer 16€1,491 EUR
Retailer 7€1,540 EUR
Retailer 15€1,559 EUR
Retailer 2€1,627 EUR
Retailer 9€1,644 EUR
Retailer 17€1,651 EUR
Retailer 13€1,720 EUR
Retailer 3€1,754 EUR
Retailer 18€1,754 EUR
Retailer 4€1,808 EUR
Retailer 10€1,834 EUR
Retailer 12€2,248 EUR
Retailer 11€2,883 EUR
NZ Jewellers€4,014 EUR

32 data points across 18 retailers

14 retailers€1,218 EUR to €4,014 EUR

A
Cheapest Retailer
-
€1,218 EUR
$1,361 USD
A
Retailer 2
-
€1,313 EUR
$1,467 USD
View
A
Retailer 3
-
€1,491 EUR
$1,666 USD
View
B+
Retailer 4
-
€1,540 EUR
$1,720 USD
View
B+
Retailer 5
-
€1,559 EUR
$1,742 USD
View
B+
Retailer 6
-
€1,627 EUR
£1,431 GBP
View
B+
Retailer 7
-
€1,651 EUR
$1,845 USD
View
B+
Retailer 8
-
€1,720 EUR
$1,922 USD
View
B+
Retailer 9
-
€1,754 EUR
$1,960 USD
View
B+
Retailer 10
-
€1,754 EUR
$1,960 USD
View
B+
Retailer 11
-
€1,808 EUR
$2,020 USD
View
B+
Retailer 12
-
€2,248 EUR
View
B
Retailer 13
-
€2,883 EUR
£2,536 GBP
View
Most Expensive
B
NZ Jewellers
d5307ce0-16e2-407b-9e7e-13e2ee616e02 · Oct 30
€4,014 EUR
$4,484 USD
View
13 more retailers have this diamond
Prices start from €1,218 EURSave up to €2,795 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
€1,218 EUR