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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 1555914398

Certificate GIA 1555914398

Diamond specifications and retailer prices

From €1,352 EUR
As of November 6, 2026
Save €3,034 EUR (69%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €4,386 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555914398. Listed at 23 retailers as of November 5, 2026, with prices from €1,352 to €4,386, a €3,034 spread on the same certified stone. NZ Jewellers lists it at €4,386. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555914398
Dimensions6.41 × 7.05 × 3.84 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Crystal, Needle
Top View
6.41 mm7.05 mm1.00 ctH / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555914398
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 54.5%

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 6
Current: €4,386 EUR|Low: €1,352 EUR|High: €4,386 EUR|Avg: €2,221 EUR|+15.9%
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
Retailer 19
Retailer 20
November 7, 2026
Retailer 10€1,352 EUR
Retailer 14€1,417 EUR
Retailer 9€1,660 EUR
Retailer 20€1,677 EUR
Retailer 18€1,679 EUR
Retailer 13€1,706 EUR
Retailer 15€1,744 EUR
Retailer 4€1,798 EUR
Retailer 12€1,810 EUR
Retailer 17€1,873 EUR
Retailer 5€1,881 EUR
Retailer 6€1,881 EUR
Retailer 8€1,921 EUR
Retailer 2€1,947 EUR
Retailer 7€2,075 EUR
Retailer 19€2,194 EUR
Retailer 16€2,442 EUR
Retailer 3€3,141 EUR
Retailer 11€3,895 EUR
NZ Jewellers€4,386 EUR

22 data points across 20 retailers

23 retailers€1,352 EUR to €4,386 EUR

A
Cheapest Retailer
-
€1,352 EUR
A
Retailer 2
-
€1,417 EUR
View
B+
Retailer 3
-
€1,660 EUR
View
Final sale: no returns
B+
Retailer 4
-
€1,677 EUR
View
B+
Retailer 5
-
€1,679 EUR
View
B+
Retailer 6
-
€1,706 EUR
View
B+
Retailer 7
-
€1,706 EUR
View
B+
Retailer 8
-
€1,744 EUR
View
B+
Retailer 9
-
€1,798 EUR
View
Retailer 10
-
€1,810 EUR
View
Price last confirmed 9 days ago
B+
Retailer 11
-
€1,856 EUR
View
B+
Retailer 12
-
€1,873 EUR
View
B+
Retailer 13
-
€1,881 EUR
View
B+
Retailer 14
-
€1,881 EUR
View
B+
Retailer 15
-
€1,921 EUR
View
B+
Retailer 16
-
€1,947 EUR
View
B+
Retailer 17
-
€2,075 EUR
View
B+
Retailer 18
-
€2,194 EUR
View
Retailer 19
-
€2,246 EUR
View
Price last confirmed 33 days ago
B+
Retailer 20
-
€2,442 EUR
View
B
Retailer 21
-
€3,141 EUR
View
Retailer 22
-
€3,895 EUR
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
6d2906d9-6a01-487d-a4f8-06178ea42c17 · Nov 5
€4,386 EUR
$4,897 USD
View
22 more retailers have this diamond
Prices start from €1,352 EURSave up to €3,034 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
€1,352 EUR