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1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 648418582

Shape and cutting style on the report: Round brilliant

Certificate IGI 648418582

Diamond specifications and retailer prices

From €1,087 EUR
As of November 4, 2026
Save €1,774 EUR (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,861 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 648418582. Listed at 15 retailers as of November 4, 2026, with prices from €1,087 to €2,861, a €1,774 spread on the same certified stone. NZ Jewellers lists it at €2,861. 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

1.03
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.7°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 648418582
Dimensions6.49 × 6.44 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.49 mm6.44 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 648418582
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 41.6°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €1,122 EUR|Low: €1,087 EUR|High: €2,174 EUR|Avg: €1,363 EUR|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8€1,087 EUR
Retailer 6€1,109 EUR
Retailer 1€1,122 EUR
Retailer 9€1,227 EUR
Retailer 7€1,274 EUR
Retailer 2€1,341 EUR
Retailer 4€1,431 EUR
Retailer 3€1,433 EUR
Retailer 5€2,143 EUR

41 data points across 9 retailers

15 retailers€1,087 EUR to €2,861 EUR

A
Cheapest Retailer
-
€1,087 EUR
A
Retailer 2
-
€1,109 EUR
View
A
Retailer 3
-
€1,122 EUR
View
A
Retailer 4
-
€1,156 EUR
View
Retailer 5
-
€1,173 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
€1,173 EUR
View
A
Retailer 7
-
€1,227 EUR
View
A
Retailer 8
-
€1,274 EUR
View
A
Retailer 9
-
€1,293 EUR
View
A
Retailer 10
-
€1,341 EUR
View
B+
Retailer 11
-
€1,353 EUR
View
A
Retailer 12
-
€1,431 EUR
View
A
Retailer 13
-
€1,433 EUR
View
B
Retailer 14
-
€2,143 EUR
View
Most Expensive
B
NZ Jewellers
f45d1d6c-b963-4e77-8cbb-49c732f40dcc · Nov 5
€2,861 EUR
$3,211 USD
View
14 more retailers have this diamond
Prices start from €1,087 EURSave up to €1,774 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
1.03ct Round
€1,087 EUR