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4.01ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 603374339

Shape and cutting style on the report: Round brilliant

Certificate IGI 603374339

Diamond specifications and retailer prices

From €30,110 EUR
$33,639 USD
As of October 31, 2026
Save €17,431 EUR (37%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €47,541 EUR at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 603374339. Listed at 18 retailers as of October 31, 2026, with prices from €30,110 to €47,541, a €17,431 spread on the same certified stone. MOH London lists it at €47,541. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.7°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 603374339
Dimensions10.36 × 10.33 × 6.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
10.36 mm10.33 mm4.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 603374339
Side View
Table 59.0%Crown 32.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.5%

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: Oct 31
Current: €47,541 EUR|Low: €26,245 EUR|High: €48,114 EUR|Avg: €34,307 EUR|-0.9%
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 1, 2026
Retailer 3€26,327 EUR
Retailer 5€29,462 EUR
Retailer 4€30,110 EUR
Retailer 7€30,901 EUR
Retailer 11€31,709 EUR
Retailer 6€32,126 EUR
Retailer 12€33,601 EUR
Retailer 13€35,001 EUR
Retailer 9€36,401 EUR
Retailer 2€36,771 EUR
Retailer 10€37,801 EUR
Retailer 8€38,146 EUR
MOH London€47,541 EUR

26 data points across 13 retailers

18 retailers€30,110 EUR to €47,541 EUR

Retailer 1
-
€26,327 EUR
₹2,801,228 INR
Price last confirmed 9 days ago
Retailer 2
-
€28,235 EUR
$31,544 USD
View
Price last confirmed 9 days ago
Retailer 3
-
€29,462 EUR
$32,915 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
€30,110 EUR
$33,639 USD
View
A
Retailer 5
-
€30,591 EUR
$34,177 USD
View
A
Retailer 6
-
€30,800 EUR
$34,410 USD
View
Final sale: no returns
A
Retailer 7
-
€30,901 EUR
£27,184 GBP
View
A
Retailer 8
-
€31,709 EUR
$35,425 USD
View
A
Retailer 9
-
€32,126 EUR
£28,261 GBP
View
A
Retailer 10
-
€32,604 EUR
$36,425 USD
View
A
Retailer 11
-
€33,601 EUR
$37,539 USD
View
Retailer 12
-
€35,001 EUR
$39,103 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
€36,401 EUR
$40,667 USD
View
B+
Retailer 14
-
€36,771 EUR
View
B+
Retailer 15
-
€37,410 EUR
$41,795 USD
View
B+
Retailer 16
-
€37,801 EUR
$42,231 USD
View
A
Retailer 17
-
€38,146 EUR
ZAR 688,483 ZAR
View
Most Expensive
B+
MOH London
7E0EAD8FC · Nov 1
€47,541 EUR
£41,821 GBP
View
17 more retailers have this diamond
Prices start from €30,110 EURSave up to €17,431 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
€30,110 EUR