Round|Natural|IGI

4.01ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 739589643

Shape and cutting style on the report: Round brilliant

Certificate IGI 739589643

Diamond specifications and retailer prices

From $29,958 USD
₹2,853,113 INR
As of November 1, 2026
Save $24,182 USD (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $54,140 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 739589643. Listed at 16 retailers as of November 1, 2026, with prices from $29,958 to $54,140, a $24,182 spread on the same certified stone. MOH London lists it at $54,140. 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
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 739589643
Dimensions10.06 × 10.15 × 6.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
10.06 mm10.15 mm4.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 739589643
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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: $54,140 USD|Low: $29,888 USD|High: $54,792 USD|Avg: $38,610 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4$29,958 USD
Retailer 9$34,837 USD
Retailer 8$35,076 USD
Retailer 2$35,193 USD
Retailer 5$36,585 USD
Retailer 10$37,125 USD
Retailer 7$39,859 USD
Retailer 3$40,532 USD
Retailer 6$43,441 USD
MOH London$54,140 USD

28 data points across 10 retailers

16 retailers$29,958 USD to $54,140 USD

A
Cheapest Retailer
-
$29,958 USD
₹2,853,113 INR
A
Retailer 2
-
$34,383 USD
View
A
Retailer 3
-
$34,837 USD
View
A
Retailer 4
-
$35,076 USD
View
Final sale: no returns
A
Retailer 5
-
$35,193 USD
£27,711 GBP
View
A
Retailer 6
-
$36,110 USD
View
A
Retailer 7
-
$36,585 USD
£28,807 GBP
View
A
Retailer 8
-
$37,125 USD
View
Retailer 9
-
$38,265 USD
View
Price last confirmed 7 days ago
Retailer 10
-
$39,859 USD
View
Price last confirmed 7 days ago
A
Retailer 11
-
$40,532 USD
€38,602 EUR
View
B+
Retailer 12
-
$41,453 USD
View
B+
Retailer 13
-
$42,604 USD
View
B+
Retailer 14
-
$43,048 USD
View
A
Retailer 15
-
$43,441 USD
ZAR 701,799 ZAR
View
Most Expensive
B+
MOH London
5DCF3A6FC · Nov 1
$54,140 USD
£42,630 GBP
View
15 more retailers have this diamond
Prices start from $29,958 USDSave up to $24,182 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
$29,958 USD