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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555401272

Certificate GIA 6555401272

Diamond specifications and retailer prices

From €1,562 EUR
As of November 6, 2026
Save €2,670 EUR (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €4,232 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555401272. Listed at 21 retailers as of November 5, 2026, with prices from €1,562 to €4,232, a €2,670 spread on the same certified stone. NZ Jewellers lists it at €4,232. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555401272
Dimensions6.35 × 6.39 × 3.95 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.35 mm6.39 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555401272
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

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: €1,883 EUR|Low: €1,562 EUR|High: €3,565 EUR|Avg: €2,127 EUR|-1.8%
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 3€1,562 EUR
Retailer 8€1,568 EUR
Retailer 6€1,689 EUR
Retailer 9€1,783 EUR
Retailer 1€1,883 EUR
Retailer 2€1,948 EUR
Retailer 4€2,170 EUR
Retailer 5€2,186 EUR
Retailer 7€2,324 EUR
Retailer 10€2,433 EUR
Retailer 11€3,537 EUR

25 data points across 11 retailers

21 retailers€1,562 EUR to €4,232 EUR

A
Cheapest Retailer
-
€1,562 EUR
A
Retailer 2
-
€1,568 EUR
View
A
Retailer 3
-
€1,689 EUR
View
A
Retailer 4
-
€1,783 EUR
View
A
Retailer 5
-
€1,828 EUR
View
A
Retailer 6
-
€1,867 EUR
View
Final sale: no returns
A
Retailer 7
-
€1,883 EUR
View
A
Retailer 8
-
€1,948 EUR
View
Retailer 9
-
€2,024 EUR
View
Price last confirmed 8 days ago
A
Retailer 10
-
€2,024 EUR
View
B+
Retailer 11
-
€2,118 EUR
View
B+
Retailer 12
-
€2,148 EUR
View
B+
Retailer 13
-
€2,170 EUR
View
B+
Retailer 14
-
€2,186 EUR
View
B+
Retailer 15
-
€2,208 EUR
View
B+
Retailer 16
-
€2,324 EUR
View
B+
Retailer 17
-
€2,335 EUR
View
B+
Retailer 18
-
€2,433 EUR
View
B
Retailer 19
-
€3,019 EUR
View
B
Retailer 20
-
€3,537 EUR
View
Most Expensive
B
NZ Jewellers
856f0a8c-3b65-4e36-9112-446ac20fed2e · Nov 5
€4,232 EUR
$4,750 USD
View
20 more retailers have this diamond
Prices start from €1,562 EURSave up to €2,670 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 Round
€1,562 EUR