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4.03ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 613368674

Shape and cutting style on the report: Round brilliant

Certificate IGI 613368674

Diamond specifications and retailer prices

From €15,066 EUR
As of November 4, 2026
Save €8,499 EUR (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €23,565 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 4.03ct natural round diamond

This 4.03ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 613368674. Listed at 15 retailers as of November 4, 2026, with prices from €15,066 to €23,565, a €8,499 spread on the same certified stone. MOH London lists it at €23,565. 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

4.03
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 613368674
Dimensions10.15 × 10.12 × 6.27 mm
L/W Ratio1.00
Culet sizePointed
Top View
10.15 mm10.12 mm4.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 613368674
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €23,565 EUR|Low: €15,066 EUR|High: €24,823 EUR|Avg: €18,503 EUR|-5.1%
MOH London
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
November 6, 2026
Retailer 11€15,066 EUR
Retailer 7€15,174 EUR
Retailer 4€15,353 EUR
Retailer 2€15,641 EUR
Retailer 9€15,701 EUR
Retailer 12€16,318 EUR
Retailer 14€16,699 EUR
Retailer 5€17,535 EUR
Retailer 6€18,091 EUR
Retailer 10€18,214 EUR
Retailer 13€18,563 EUR
Retailer 3€18,787 EUR
Retailer 8€18,827 EUR
Retailer 15€21,433 EUR
MOH London€23,565 EUR

36 data points across 15 retailers

15 retailers€15,066 EUR to €23,565 EUR

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Cheapest Retailer
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€15,066 EUR
A
Retailer 2
-
€15,174 EUR
View
A
Retailer 3
-
€15,353 EUR
View
A
Retailer 4
-
€15,641 EUR
View
A
Retailer 5
-
€15,701 EUR
View
A
Retailer 6
-
€16,318 EUR
View
Retailer 7
-
€16,699 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
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€17,535 EUR
View
A
Retailer 9
-
€18,091 EUR
View
A
Retailer 10
-
€18,214 EUR
View
A
Retailer 11
-
€18,563 EUR
View
A
Retailer 12
-
€18,787 EUR
View
A
Retailer 13
-
€18,827 EUR
View
A
Retailer 14
-
€21,433 EUR
View
Most Expensive
A
MOH London
9847CAC73 · Nov 4
€23,565 EUR
£20,826 GBP
View
14 more retailers have this diamond
Prices start from €15,066 EURSave up to €8,499 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
4.03ct Round
€15,066 EUR