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Round|Natural|IGI

3.06ct I IF Round Natural Diamond

EX • I/IF • IGI 821603540

Shape and cutting style on the report: Round brilliant

Certificate IGI 821603540

Diamond specifications and retailer prices

From £20,468 GBP
As of November 4, 2026
Save £11,041 GBP (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £31,509 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.06ct natural round diamond

This 3.06ct natural round sits in the three to five carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 821603540. Listed at 10 retailers as of November 4, 2026, with prices from £20,468 to £31,509, a £11,041 spread on the same certified stone. MOH London lists it at £31,509. 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

3.06
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 821603540
Dimensions9.47 × 9.55 × 5.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
9.47 mm9.55 mm3.06 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 821603540
Side View
Table 59.0%Crown 31.7°Girdle: THN-MEDPavilion 41.7°CuletDepth 59.6%

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 4
Current: £31,509 GBP|Low: £20,468 GBP|High: £32,892 GBP|Avg: £24,773 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10£20,468 GBP
Retailer 8£20,531 GBP
Retailer 3£20,745 GBP
Retailer 7£21,072 GBP
Retailer 4£23,445 GBP
Retailer 9£24,190 GBP
Retailer 2£24,385 GBP
Retailer 6£25,120 GBP
Retailer 5£28,038 GBP
MOH London£31,509 GBP

41 data points across 10 retailers

10 retailers£20,468 GBP to £31,509 GBP

A
Cheapest Retailer
-
£20,468 GBP
Final sale: no returns
A
Retailer 2
-
£20,531 GBP
View
A
Retailer 3
-
£20,745 GBP
View
A
Retailer 4
-
£21,072 GBP
View
A
Retailer 5
-
£21,665 GBP
View
A
Retailer 6
-
£23,445 GBP
View
A
Retailer 7
-
£24,190 GBP
View
A
Retailer 8
-
£24,385 GBP
View
A
Retailer 9
-
£25,120 GBP
View
Most Expensive
B+
MOH London
18ECCE58C · Nov 4
£31,509 GBP
View
9 more retailers have this diamond
Prices start from £20,468 GBPSave up to £11,041 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
3.06ct Round
£20,468 GBP