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Round|Natural|IGI

4.01ct F I1 Round Natural Diamond

EX • F/I1 • IGI 700529325

Shape and cutting style on the report: Round brilliant

Certificate IGI 700529325

Diamond specifications and retailer prices

From £18,868 GBP
$25,281 USD
As of November 1, 2026
Save £7,730 GBP (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £26,598 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 4.01ct natural round diamond

This 4.01ct natural round sits in the three to five carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 700529325. Listed at 8 retailers as of October 30, 2026, with prices from £18,868 to £26,598, a £7,730 spread on the same certified stone. NZ Jewellers lists it at £26,598. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

4.01
Carat
F
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.2°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 700529325
Dimensions10.11 × 10.17 × 6.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
10.11 mm10.17 mm4.01 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 700529325
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £26,598 GBP|Low: £18,868 GBP|High: £26,598 GBP|Avg: £22,081 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7£18,868 GBP
Retailer 5£20,724 GBP
Retailer 3£21,739 GBP
Retailer 8£21,760 GBP
Retailer 2£21,908 GBP
Retailer 4£22,451 GBP
Retailer 6£23,315 GBP
NZ Jewellers£26,598 GBP

11 data points across 8 retailers

8 retailers£18,868 GBP to £26,598 GBP

B+
Cheapest Retailer
-
£18,868 GBP
$25,281 USD
Retailer 2
-
£20,724 GBP
$27,768 USD
View
Price last confirmed 17 days ago
B+
Retailer 3
-
£21,739 GBP
$29,128 USD
View
B+
Retailer 4
-
£21,760 GBP
$29,156 USD
View
B+
Retailer 5
-
£21,908 GBP
€27,957 EUR
View
B+
Retailer 6
-
£22,451 GBP
$30,082 USD
View
B
Retailer 7
-
£23,315 GBP
$31,239 USD
View
Most Expensive
B
NZ Jewellers
9ca1ce69-e7f3-47a8-b6d7-e1215a4b521b · Oct 30
£26,598 GBP
$35,638 USD
View
7 more retailers have this diamond
Prices start from £18,868 GBPSave up to £7,730 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.

B+
4.01ct Round
£18,868 GBP