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Round|Natural|IGI

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 747534602

Shape and cutting style on the report: Round brilliant

Certificate IGI 747534602

Diamond specifications and retailer prices

From €827 EUR
As of November 6, 2026
Save €3,175 EUR (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €5,484 EUR at MOH London · As of November 2, 2026
View at MOH London

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 747534602. Listed at 13 retailers as of November 5, 2026, with a 384% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle33.1°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 747534602
Dimensions6.46 × 6.54 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.46 mm6.54 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 747534602
Side View
Table 59.0%Crown 33.1°Girdle: MediumPavilion 41.4°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
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 6
Current: €5,484 EUR|Low: €827 EUR|High: €5,484 EUR|Avg: €1,659 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2€827 EUR
Retailer 4€1,002 EUR
Retailer 7€1,429 EUR
Retailer 5€1,433 EUR
Retailer 12€3,027 EUR
Retailer 11€3,145 EUR
Retailer 10€3,155 EUR
Retailer 3€3,280 EUR
Retailer 8€3,405 EUR
Retailer 9€3,784 EUR
Retailer 6€4,002 EUR
MOH London€5,484 EUR

41 data points across 12 retailers

13 retailers€827 EUR to €4,002 EUR

A
Cheapest Retailer
-
€827 EUR
A
Retailer 2
-
€1,002 EUR
View
A
Retailer 3
-
€1,149 EUR
View
A
Retailer 4
-
€1,429 EUR
View
B+
Retailer 5
-
€1,433 EUR
View
B
Retailer 6
-
€3,027 EUR
View
B
Retailer 7
-
€3,145 EUR
View
B
Retailer 8
-
€3,155 EUR
View
B
Retailer 9
-
€3,280 EUR
View
B
Retailer 10
-
€3,405 EUR
View
B
Retailer 11
-
€3,784 EUR
View
C
Retailer 12
-
€4,002 EUR
View
Most Expensive
MOH London
6F4DCA684 · Nov 2
€5,484 EUR
£4,847 GBP
View
Price under review
12 more retailers have this diamond
Prices start from €827 EURSave up to €3,175 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
€827 EUR