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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 €1,347 EUR
HK$11,800 HKD
As of November 1, 2026
Save €2,532 EUR (65%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €3,878 EUR at Queensmith · As of October 28, 2026
View at Queensmith

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 October 28, 2026, with prices from €1,347 to €3,878, a €2,532 spread on the same certified stone. Queensmith lists it at €3,878. 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
Color
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 1
Current: €3,878 EUR|Low: €1,347 EUR|High: €3,889 EUR|Avg: €2,182 EUR|+3.0%
Queensmith
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
November 3, 2026
Retailer 4€1,347 EUR
Retailer 16€1,423 EUR
Retailer 3€1,652 EUR
Retailer 11€1,663 EUR
Retailer 10€1,680 EUR
Retailer 17€1,746 EUR
Retailer 7€1,802 EUR
Retailer 9€1,802 EUR
Retailer 6€1,832 EUR
Retailer 12€1,872 EUR
Retailer 14€1,872 EUR
Retailer 19€1,913 EUR
Retailer 2€1,947 EUR
Retailer 15€2,066 EUR
Retailer 5€2,215 EUR
Retailer 18€2,445 EUR
Retailer 13€3,136 EUR
Retailer 8€3,768 EUR
Queensmith€3,878 EUR

22 data points across 19 retailers

23 retailers€1,347 EUR to €3,878 EUR

A
Cheapest Retailer
-
€1,347 EUR
HK$11,800 HKD
A
Retailer 2
-
€1,423 EUR
₹151,984 INR
View
B+
Retailer 3
-
€1,652 EUR
$1,853 USD
View
Final sale: no returns
B+
Retailer 4
-
€1,663 EUR
SGD 2,521 SGD
View
B+
Retailer 5
-
€1,680 EUR
$1,884 USD
View
B+
Retailer 6
-
€1,698 EUR
$1,905 USD
View
B+
Retailer 7
-
€1,746 EUR
£1,542 GBP
View
B+
Retailer 8
-
€1,802 EUR
$2,021 USD
View
B+
Retailer 9
-
€1,802 EUR
$2,021 USD
View
B+
Retailer 10
-
€1,832 EUR
$2,055 USD
View
B+
Retailer 11
-
€1,848 EUR
A$3,188 AUD
View
B+
Retailer 12
-
€1,872 EUR
$2,100 USD
View
B+
Retailer 13
-
€1,872 EUR
$2,100 USD
View
B+
Retailer 14
-
€1,878 EUR
SGD 2,846 SGD
View
B+
Retailer 15
-
€1,913 EUR
$2,146 USD
View
B+
Retailer 16
-
€1,947 EUR
£1,720 GBP
View
B+
Retailer 17
-
€2,066 EUR
$2,317 USD
View
B+
Retailer 18
-
€2,215 EUR
ZAR 40,139 ZAR
View
Retailer 19
-
€2,237 EUR
A$3,860 AUD
View
Price last confirmed 28 days ago
B+
Retailer 20
-
€2,445 EUR
View
B
Retailer 21
-
€3,136 EUR
£2,770 GBP
View
B
Retailer 22
-
€3,768 EUR
$4,226 USD
View
Most Expensive
B
Queensmith
1555914398 · Oct 28
€3,878 EUR
£3,425 GBP
View
22 more retailers have this diamond
Prices start from €1,347 EURSave up to €2,532 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
€1,347 EUR