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4.01ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 603372310

Shape and cutting style on the report: Round brilliant

Certificate IGI 603372310

Diamond specifications and retailer prices

From €20,316 EUR
As of November 4, 2026
Save €11,092 EUR (35%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €31,408 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 4.01ct natural round diamond

This 4.01ct 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 603372310. Listed at 13 retailers as of November 4, 2026, with prices from €20,316 to €31,408, a €11,092 spread on the same certified stone. MOH London lists it at €31,408. 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

4.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 603372310
Dimensions10.35 × 10.43 × 6.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.35 mm10.43 mm4.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 603372310
Side View
Table 60.0%Crown 32.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 58.7%

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: €31,408 EUR|Low: €20,316 EUR|High: €32,033 EUR|Avg: €24,115 EUR|-1.9%
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
November 6, 2026
Retailer 4€20,316 EUR
Retailer 7€20,444 EUR
Retailer 2€20,847 EUR
Retailer 10€21,672 EUR
Retailer 12€22,258 EUR
Retailer 5€23,371 EUR
Retailer 9€24,113 EUR
Retailer 8€24,384 EUR
Retailer 11€24,761 EUR
Retailer 3€25,040 EUR
Retailer 6€25,094 EUR
Retailer 13€28,567 EUR
MOH London€31,408 EUR

28 data points across 13 retailers

13 retailers€20,316 EUR to €31,408 EUR

A
Cheapest Retailer
-
€20,316 EUR
A
Retailer 2
-
€20,444 EUR
View
A
Retailer 3
-
€20,847 EUR
View
A
Retailer 4
-
€21,672 EUR
View
Retailer 5
-
€22,258 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
€23,371 EUR
View
A
Retailer 7
-
€24,113 EUR
View
A
Retailer 8
-
€24,384 EUR
View
A
Retailer 9
-
€24,761 EUR
View
A
Retailer 10
-
€25,040 EUR
View
A
Retailer 11
-
€25,094 EUR
View
B+
Retailer 12
-
€28,567 EUR
View
Most Expensive
B+
MOH London
1158DA5C2 · Nov 4
€31,408 EUR
£27,758 GBP
View
12 more retailers have this diamond
Prices start from €20,316 EURSave up to €11,092 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
4.01ct Round
€20,316 EUR