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4.01ct E SI2 Round Natural Diamond

EX • E/SI2 • IGI 830652606

Shape and cutting style on the report: Round brilliant

Certificate IGI 830652606

Diamond specifications and retailer prices

From £35,643 GBP
$47,466 USD
As of October 28, 2026
Save £6,792 GBP (16%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £42,435 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 4.01ct natural round diamond

This 4.01ct natural round sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 830652606. Listed at 6 retailers as of October 28, 2026, with prices from £35,643 to £42,435, a £6,792 spread on the same certified stone. Frank Darling lists it at £42,435. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 830652606
Dimensions10.27 × 10.32 × 6.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
10.27 mm10.32 mm4.01 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 830652606
Side View
Table 57.0%Crown 34°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 60.5%

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 28
Current: £42,435 GBP|Low: £35,643 GBP|High: £42,485 GBP|Avg: £39,128 GBP
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 23, 2026
Retailer 6£35,643 GBP
Retailer 3£35,710 GBP
Retailer 7£37,010 GBP
Retailer 4£40,175 GBP
Retailer 2£41,736 GBP
Retailer 5£42,352 GBP
Frank Darling£42,435 GBP

18 data points across 7 retailers

6 retailers£35,643 GBP to £42,435 GBP

A
Cheapest Retailer
-
£35,643 GBP
$47,466 USD
A
Retailer 2
-
£35,710 GBP
$47,555 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
£37,010 GBP
$49,286 USD
View
A
Retailer 4
-
£40,175 GBP
SGD 72,297 SGD
View
A
Retailer 5
-
£41,736 GBP
$55,579 USD
View
Most Expensive
A
Frank Darling
265065-71HK · Oct 29
£42,435 GBP
$56,510 USD
View
5 more retailers have this diamond
Prices start from £35,643 GBPSave up to £6,792 GBP

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
£35,643 GBP