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1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 828653796

Shape and cutting style on the report: Round brilliant

Certificate IGI 828653796

Diamond specifications and retailer prices

From €1,866 EUR
As of November 6, 2026
Save €2,453 EUR (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,319 EUR at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 828653796. Listed at 14 retailers as of November 6, 2026, with prices from €1,866 to €4,319, a €2,453 spread on the same certified stone. NZ Jewellers lists it at €4,319. 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

1.05
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 828653796
Dimensions6.41 × 6.49 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.41 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828653796
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.4%

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: €4,319 EUR|Low: €1,866 EUR|High: €4,384 EUR|Avg: €2,409 EUR|-1.5%
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
November 7, 2026
Retailer 10€1,866 EUR
Retailer 2€1,894 EUR
Retailer 8€1,907 EUR
Retailer 11€1,977 EUR
Retailer 6€2,045 EUR
Retailer 4€2,097 EUR
Retailer 9€2,161 EUR
Retailer 12€2,190 EUR
Retailer 7€2,270 EUR
Retailer 14€2,383 EUR
Retailer 13€2,442 EUR
Retailer 3€2,559 EUR
Retailer 5€3,663 EUR
NZ Jewellers€4,319 EUR

9 data points across 14 retailers

14 retailers€1,866 EUR to €4,319 EUR

A
Cheapest Retailer
-
€1,866 EUR
A
Retailer 2
-
€1,894 EUR
View
A
Retailer 3
-
€1,907 EUR
View
Final sale: no returns
A
Retailer 4
-
€1,977 EUR
View
A
Retailer 5
-
€2,045 EUR
View
A
Retailer 6
-
€2,097 EUR
View
A
Retailer 7
-
€2,161 EUR
View
B+
Retailer 8
-
€2,190 EUR
View
A
Retailer 9
-
€2,270 EUR
View
B+
Retailer 10
-
€2,383 EUR
View
B+
Retailer 11
-
€2,442 EUR
View
B+
Retailer 12
-
€2,559 EUR
View
B
Retailer 13
-
€3,663 EUR
View
Most Expensive
B
NZ Jewellers
1d7e74f0-7637-4c67-8077-76cf2e13601e · Nov 7
€4,319 EUR
$4,822 USD
View
13 more retailers have this diamond
Prices start from €1,866 EURSave up to €2,453 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
1.05ct Round
€1,866 EUR