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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 $32,915 USD
As of November 1, 2026
Save $20,198 USD (38%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $53,113 USD 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 November 1, 2026, with prices from $32,915 to $53,113, a $20,198 spread on the same certified stone. MOH London lists it at $53,113. 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: Nov 1
Current: $53,113 USD|Low: $29,321 USD|High: $53,753 USD|Avg: $38,377 USD|-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 2, 2026
Retailer 3$29,413 USD
Retailer 5$32,915 USD
Retailer 4$33,639 USD
Retailer 2$34,523 USD
Retailer 11$35,425 USD
Retailer 7$35,891 USD
Retailer 12$37,539 USD
Retailer 13$39,103 USD
Retailer 9$40,667 USD
Retailer 6$41,081 USD
Retailer 10$42,231 USD
Retailer 8$42,617 USD
MOH London$53,113 USD

27 data points across 13 retailers

18 retailers$32,915 USD to $53,113 USD

Retailer 1
-
$29,413 USD
₹2,801,228 INR
Price last confirmed 9 days ago
Retailer 2
-
$31,544 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$32,915 USD
View
A
Retailer 4
-
$33,639 USD
View
A
Retailer 5
-
$34,177 USD
View
A
Retailer 6
-
$34,410 USD
View
Final sale: no returns
A
Retailer 7
-
$34,523 USD
£27,184 GBP
View
A
Retailer 8
-
$35,425 USD
View
A
Retailer 9
-
$35,891 USD
£28,261 GBP
View
A
Retailer 10
-
$36,425 USD
View
Retailer 11
-
$37,539 USD
View
Price last confirmed 7 days ago
Retailer 12
-
$39,103 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$40,667 USD
View
B+
Retailer 14
-
$41,081 USD
€39,125 EUR
View
B+
Retailer 15
-
$41,795 USD
View
B+
Retailer 16
-
$42,231 USD
View
A
Retailer 17
-
$42,617 USD
ZAR 688,483 ZAR
View
Most Expensive
B+
MOH London
7E0EAD8FC · Nov 1
$53,113 USD
£41,821 GBP
View
17 more retailers have this diamond
Prices start from $32,915 USDSave up to $20,198 USD

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
$32,915 USD