Heart|Natural|GIA

1.55ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6555797191

Certificate GIA 6555797191

Diamond specifications and retailer prices

From €3,462 EUR
As of November 6, 2026
Save €4,431 EUR (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €7,893 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two 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 6555797191. Listed at 10 retailers as of November 5, 2026, with prices from €3,462 to €7,893, a €4,431 spread on the same certified stone. NZ Jewellers lists it at €7,893. 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

1.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle36.87°
OriginNatural
Grading LabGIA
CertificateGIA 6555797191
Dimensions7.28 × 7.95 × 4.10 mm
L/W Ratio1.09
Key to symbols
Crystal, Cloud, Needle
Top View
7.28 mm7.95 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555797191
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 36.87°Culet: NoneDepth 56.3%

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: €7,893 EUR|Low: €3,462 EUR|High: €8,662 EUR|Avg: €5,366 EUR|-8.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8€3,462 EUR
Retailer 4€3,995 EUR
Retailer 7€4,154 EUR
Retailer 9€4,491 EUR
Retailer 5€4,718 EUR
Retailer 6€4,718 EUR
Retailer 2€5,389 EUR
Retailer 3€7,495 EUR
NZ Jewellers€7,893 EUR

41 data points across 9 retailers

10 retailers€3,462 EUR to €7,893 EUR

A
Cheapest Retailer
-
€3,462 EUR
A
Retailer 2
-
€3,995 EUR
View
A
Retailer 3
-
€4,154 EUR
View
Retailer 4
-
€4,491 EUR
View
Price last confirmed 12 days ago
B+
Retailer 5
-
€4,718 EUR
View
B+
Retailer 6
-
€4,718 EUR
View
B+
Retailer 7
-
€5,040 EUR
View
B+
Retailer 8
-
€5,389 EUR
View
B
Retailer 9
-
€7,495 EUR
View
Most Expensive
B
NZ Jewellers
6cb629f5-aa1b-47e8-bb9b-7983ae7fefb7 · Nov 5
€7,893 EUR
$8,812 USD
View
9 more retailers have this diamond
Prices start from €3,462 EURSave up to €4,431 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
1.55ct Heart
€3,462 EUR