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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2427733321

Certificate GIA 2427733321

Diamond specifications and retailer prices

From €1,173 EUR
As of November 6, 2026
Save €3,137 EUR (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,311 EUR at Adiamor · As of November 5, 2026
View at Adiamor

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 2427733321. Listed at 18 retailers as of November 5, 2026, with prices from €1,173 to €4,311, a €3,137 spread on the same certified stone. Adiamor lists it at €4,311. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2427733321
Dimensions6.24 × 6.74 × 3.72 mm
L/W Ratio1.08
Top View
6.24 mm6.74 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2427733321
Side View
Table 59.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 55.3%

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: €1,173 EUR|Low: €1,173 EUR|High: €2,967 EUR|Avg: €1,891 EUR|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1€1,173 EUR
Retailer 9€1,204 EUR
Retailer 11€1,515 EUR
Retailer 2€1,544 EUR
Retailer 5€1,674 EUR
Retailer 10€1,720 EUR
Retailer 6€1,817 EUR
Retailer 7€2,042 EUR
Retailer 3€2,184 EUR
Retailer 4€2,272 EUR
Retailer 8€2,924 EUR

34 data points across 11 retailers

18 retailers€1,173 EUR to €4,311 EUR

A
Cheapest Retailer
-
€1,173 EUR
A
Retailer 2
-
€1,204 EUR
View
B+
Retailer 3
-
€1,515 EUR
View
A
Retailer 4
-
€1,515 EUR
View
B+
Retailer 5
-
€1,544 EUR
View
Final sale: no returns
Retailer 6
-
€1,674 EUR
View
Price last confirmed 9 days ago
B+
Retailer 7
-
€1,674 EUR
View
B+
Retailer 8
-
€1,674 EUR
View
B+
Retailer 9
-
€1,720 EUR
View
B+
Retailer 10
-
€1,751 EUR
View
B+
Retailer 11
-
€1,817 EUR
View
B+
Retailer 12
-
€1,931 EUR
View
B+
Retailer 13
-
€2,042 EUR
View
Retailer 14
-
€2,184 EUR
View
Price last confirmed 33 days ago
B+
Retailer 15
-
€2,272 EUR
View
B
Retailer 16
-
€2,924 EUR
View
B
Retailer 17
-
€4,082 EUR
View
Most Expensive
B
Adiamor
D-51261821 · Nov 5
€4,311 EUR
$4,813 USD
View
17 more retailers have this diamond
Prices start from €1,173 EURSave up to €3,137 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
€1,173 EUR