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Round|Natural|GIA

1.01ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 2556991840

Certificate GIA 2556991840

Diamond specifications and retailer prices

From €1,639 EUR
As of November 6, 2026
Save €2,983 EUR (65%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €4,622 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2556991840. Listed at 21 retailers as of November 5, 2026, with prices from €1,639 to €4,622, a €2,983 spread on the same certified stone. NZ Jewellers lists it at €4,622. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556991840
Dimensions6.19 × 6.24 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.19 mm6.24 mm1.01 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556991840
Side View
Table 55.0%Crown 38.5°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 65.1%

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: €4,622 EUR|Low: €1,627 EUR|High: €4,816 EUR|Avg: €2,401 EUR
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 5, 2026
Retailer 3€1,639 EUR
Retailer 16€1,674 EUR
Retailer 17€1,917 EUR
Retailer 8€1,933 EUR
Retailer 11€2,010 EUR
Retailer 18€2,040 EUR
Retailer 20€2,071 EUR
Retailer 7€2,130 EUR
Retailer 10€2,210 EUR
Retailer 13€2,210 EUR
Retailer 6€2,239 EUR
Retailer 12€2,287 EUR
Retailer 15€2,313 EUR
Retailer 14€2,325 EUR
Retailer 19€2,579 EUR
Retailer 9€2,605 EUR
Retailer 2€2,698 EUR
Retailer 4€2,702 EUR
Retailer 5€3,873 EUR
NZ Jewellers€4,622 EUR

22 data points across 20 retailers

21 retailers€1,639 EUR to €4,622 EUR

A
Cheapest Retailer
-
€1,639 EUR
A
Retailer 2
-
€1,674 EUR
View
A
Retailer 3
-
€1,917 EUR
View
A
Retailer 4
-
€1,933 EUR
View
Retailer 5
-
€2,010 EUR
View
Price last confirmed 9 days ago
A
Retailer 6
-
€2,040 EUR
View
Final sale: no returns
B+
Retailer 7
-
€2,071 EUR
View
B+
Retailer 8
-
€2,130 EUR
View
B+
Retailer 9
-
€2,210 EUR
View
Retailer 10
-
€2,210 EUR
View
Price last confirmed 9 days ago
Retailer 11
-
€2,239 EUR
View
Price last confirmed 6 days ago
Retailer 12
-
€2,287 EUR
View
Price last confirmed 11 days ago
B+
Retailer 13
-
€2,313 EUR
View
B+
Retailer 14
-
€2,325 EUR
View
Retailer 15
-
€2,528 EUR
View
Price last confirmed 31 days ago
B+
Retailer 16
-
€2,579 EUR
View
Retailer 17
-
€2,605 EUR
View
Price last confirmed 7 days ago
B+
Retailer 18
-
€2,698 EUR
View
B+
Retailer 19
-
€2,702 EUR
View
B
Retailer 20
-
€3,873 EUR
View
Most Expensive
B
NZ Jewellers
74e0051a-4d97-473d-80a2-ab7b04b82046 · Nov 5
€4,622 EUR
$5,160 USD
View
20 more retailers have this diamond
Prices start from €1,639 EURSave up to €2,983 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
1.01ct Round
€1,639 EUR