Round|Natural|GIA

3.05ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2155581854

Certificate GIA 2155581854

Diamond specifications and retailer prices

From £25,491 GBP
As of November 2, 2026
Save £24,697 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £50,187 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 3.05ct natural round diamond

This 3.05ct 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 GIA 2155581854. Listed at 11 retailers as of November 2, 2026, with prices from £25,491 to £50,187, a £24,697 spread on the same certified stone. Diamond Quarter lists it at £50,187. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2155581854
Dimensions9.31 × 9.28 × 5.80 mm
L/W Ratio1.00
Culet sizeNone
Top View
9.31 mm9.28 mm3.05 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2155581854
Side View
Table 55.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

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 2
Current: £24,546 GBP|Low: £23,085 GBP|High: £42,707 GBP|Avg: £29,583 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4£23,085 GBP
Retailer 1£24,546 GBP
Retailer 6£27,020 GBP
Retailer 3£27,828 GBP
Retailer 2£31,613 GBP
Retailer 5£42,707 GBP

37 data points across 6 retailers

11 retailers£25,491 GBP to £50,187 GBP

Retailer 1
-
£23,085 GBP
Price last confirmed 32 days ago
Retailer 2
-
£24,546 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£24,652 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£25,491 GBP
View
Retailer 5
-
£28,146 GBP
View
Price last confirmed 39 days ago
Retailer 6
-
£28,146 GBP
View
Price last confirmed 38 days ago
Retailer 7
-
£29,272 GBP
View
Price last confirmed 36 days ago
Retailer 8
-
£30,398 GBP
View
Price last confirmed 38 days ago
B+
Retailer 9
-
£31,610 GBP
View
Retailer 10
-
£42,707 GBP
View
Price last confirmed 32 days ago
Most Expensive
B
Diamond Quarter
3.05SI2E21543353N · Nov 5
£50,187 GBP
View
10 more retailers have this diamond
Prices start from £25,491 GBPSave up to £24,697 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
£25,491 GBP