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Round|Natural|IGI

3.05ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 727559258

Shape and cutting style on the report: Round brilliant

Certificate IGI 727559258

Diamond specifications and retailer prices

From £9,333 GBP
As of November 5, 2026
Save £7,594 GBP (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £16,927 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.05ct natural round diamond

This 3.05ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 727559258. Listed at 15 retailers as of November 4, 2026, with prices from £9,333 to £16,927, a £7,594 spread on the same certified stone. MOH London lists it at £16,927. 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

3.05
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 727559258
Dimensions9.24 × 9.28 × 5.74 mm
L/W Ratio1.00
Girdle conditionPARTLY FACETED
Culet sizeNone
Top View
9.24 mm9.28 mm3.05 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 727559258
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £16,927 GBP|Low: £9,333 GBP|High: £19,169 GBP|Avg: £13,076 GBP|-11.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2£9,333 GBP
Retailer 11£11,028 GBP
Retailer 3£11,496 GBP
Retailer 4£11,996 GBP
Retailer 8£12,795 GBP
Retailer 6£12,995 GBP
Retailer 12£13,099 GBP
Retailer 9£13,327 GBP
Retailer 7£13,339 GBP
Retailer 10£13,495 GBP
Retailer 5£15,395 GBP
MOH London£16,927 GBP

25 data points across 12 retailers

15 retailers£9,333 GBP to £16,927 GBP

A
Cheapest Retailer
-
£9,333 GBP
A
Retailer 2
-
£11,028 GBP
View
A
Retailer 3
-
£11,042 GBP
View
A
Retailer 4
-
£11,496 GBP
View
Final sale: no returns
Retailer 5
-
£11,996 GBP
View
Price last confirmed 13 days ago
Retailer 6
-
£12,014 GBP
View
Price last confirmed 30 days ago
A
Retailer 7
-
£12,795 GBP
View
A
Retailer 8
-
£12,831 GBP
View
A
Retailer 9
-
£12,995 GBP
View
A
Retailer 10
-
£13,099 GBP
View
A
Retailer 11
-
£13,327 GBP
View
A
Retailer 12
-
£13,339 GBP
View
A
Retailer 13
-
£13,495 GBP
View
A
Retailer 14
-
£15,395 GBP
View
Most Expensive
A
MOH London
BF39B5D14 · Nov 4
£16,927 GBP
View
14 more retailers have this diamond
Prices start from £9,333 GBPSave up to £7,594 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
3.05ct Round
£9,333 GBP