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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

GD • D/SI1 • GIA 2556450146

Certificate GIA 2556450146

Diamond specifications and retailer prices

From €1,960 EUR
As of November 6, 2026
Save €3,280 EUR (63%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €5,240 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 2556450146. Listed at 25 retailers as of November 5, 2026, with prices from €1,960 to €5,240, a €3,280 spread on the same certified stone. NZ Jewellers lists it at €5,240. 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
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556450146
Dimensions6.03 × 6.13 × 4.07 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.03 mm6.13 mm1.01 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556450146
Side View
Table 62.0%Crown 40°Girdle: THK-VTKPavilion 41°Culet: NoneDepth 66.8%

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: €5,240 EUR|Low: €1,949 EUR|High: €5,240 EUR|Avg: €2,832 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
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 6, 2026
Retailer 2€1,960 EUR
Retailer 5€1,961 EUR
Retailer 11€2,215 EUR
Retailer 15€2,245 EUR
Retailer 22€2,245 EUR
Retailer 12€2,313 EUR
Retailer 13€2,398 EUR
Retailer 3€2,454 EUR
Retailer 6€2,459 EUR
Retailer 4€2,485 EUR
Retailer 8€2,506 EUR
Retailer 10€2,506 EUR
Retailer 9€2,602 EUR
Retailer 7€2,632 EUR
Retailer 19€2,637 EUR
Retailer 18€2,733 EUR
Retailer 23€2,871 EUR
Retailer 14€2,892 EUR
Retailer 20€2,930 EUR
Retailer 21€3,059 EUR
Retailer 16€3,697 EUR
Retailer 17€3,801 EUR
Retailer 24€4,378 EUR
NZ Jewellers€5,240 EUR

19 data points across 24 retailers

25 retailers€1,960 EUR to €5,240 EUR

A
Cheapest Retailer
-
€1,960 EUR
A
Retailer 2
-
€1,961 EUR
View
A
Retailer 3
-
€2,215 EUR
View
B+
Retailer 4
-
€2,245 EUR
View
A
Retailer 5
-
€2,245 EUR
View
A
Retailer 6
-
€2,313 EUR
View
Final sale: no returns
A
Retailer 7
-
€2,398 EUR
View
B+
Retailer 8
-
€2,454 EUR
View
B+
Retailer 9
-
€2,459 EUR
View
B+
Retailer 10
-
€2,485 EUR
View
Retailer 11
-
€2,506 EUR
View
Price last confirmed 8 days ago
B+
Retailer 12
-
€2,506 EUR
View
B+
Retailer 13
-
€2,602 EUR
View
B+
Retailer 14
-
€2,632 EUR
View
B+
Retailer 15
-
€2,637 EUR
View
B+
Retailer 16
-
€2,733 EUR
View
B+
Retailer 17
-
€2,871 EUR
View
B+
Retailer 18
-
€2,892 EUR
View
B+
Retailer 19
-
€2,930 EUR
View
Retailer 20
-
€3,037 EUR
View
Price last confirmed 33 days ago
B+
Retailer 21
-
€3,059 EUR
View
B
Retailer 22
-
€3,697 EUR
View
B
Retailer 23
-
€3,801 EUR
View
B
Retailer 24
-
€4,378 EUR
View
Most Expensive
C
NZ Jewellers
ffbaecdc-c3de-48b0-9890-1cd15db27370 · Nov 5
€5,240 EUR
$5,881 USD
View
24 more retailers have this diamond
Prices start from €1,960 EURSave up to €3,280 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
€1,960 EUR