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1.03ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 523290757

Shape and cutting style on the report: Round brilliant

Certificate IGI 523290757

Diamond specifications and retailer prices

From €1,587 EUR
As of November 5, 2026
Save €2,698 EUR (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,285 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 523290757. Listed at 13 retailers as of November 5, 2026, with prices from €1,587 to €4,285, a €2,698 spread on the same certified stone. NZ Jewellers lists it at €4,285. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 523290757
Dimensions6.55 × 6.50 × 3.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.55 mm6.50 mm1.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 523290757
Side View
Table 60.0%Crown 32.5°Girdle: MediumPavilion 41.5°Culet: NoneDepth 60.8%

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 5
Current: €4,285 EUR|Low: €1,486 EUR|High: €4,285 EUR|Avg: €2,163 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9€1,587 EUR
Retailer 7€1,622 EUR
Retailer 6€1,635 EUR
Retailer 2€1,657 EUR
Retailer 3€1,757 EUR
Retailer 11€1,757 EUR
Retailer 8€1,838 EUR
Retailer 10€2,027 EUR
Retailer 5€2,390 EUR
Retailer 4€3,069 EUR
NZ Jewellers€4,285 EUR

45 data points across 11 retailers

13 retailers€1,587 EUR to €4,285 EUR

A
Cheapest Retailer
-
€1,587 EUR
A
Retailer 2
-
€1,622 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,635 EUR
View
A
Retailer 4
-
€1,657 EUR
View
A
Retailer 5
-
€1,757 EUR
View
Retailer 6
-
€1,757 EUR
View
Price last confirmed 8 days ago
A
Retailer 7
-
€1,838 EUR
View
B+
Retailer 8
-
€2,027 EUR
View
Retailer 9
-
€2,110 EUR
View
Price last confirmed 60 days ago
B+
Retailer 10
-
€2,390 EUR
View
B+
Retailer 11
-
€3,069 EUR
View
Retailer 12
-
€3,823 EUR
View
Price last confirmed 66 days ago
Most Expensive
B
NZ Jewellers
2bfe237d-685b-4f8d-a5b2-3ae7e998d85d · Nov 5
€4,285 EUR
$4,809 USD
View
12 more retailers have this diamond
Prices start from €1,587 EURSave up to €2,698 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
€1,587 EUR