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Round|Natural|GIA

3.05ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2538585270

Certificate GIA 2538585270

Diamond specifications and retailer prices

From £21,538 GBP
As of November 6, 2026
13 retailers carry this diamond
Most expensive: £29,864 GBP at MOH London · As of October 29, 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 GIA 2538585270. Listed at 13 retailers as of November 6, 2026. 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°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2538585270
Dimensions9.23 × 9.19 × 5.74 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
9.23 mm9.19 mm3.05 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2538585270
Side View
Table 60.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 62.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £29,864 GBP|Low: £16,158 GBP|High: £30,465 GBP|Avg: £20,395 GBP|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 9£16,158 GBP
Retailer 7£17,457 GBP
Retailer 12£17,795 GBP
Retailer 2£17,997 GBP
Retailer 8£18,091 GBP
Retailer 4£18,192 GBP
Retailer 10£18,227 GBP
Retailer 6£18,806 GBP
Retailer 5£22,944 GBP
Retailer 11£23,373 GBP
Retailer 3£24,103 GBP
MOH London£29,864 GBP

31 data points across 12 retailers

13 retailers

Retailer 1
-
£16,158 GBP
Price last confirmed 13 days ago
Retailer 2
-
£17,457 GBP
View
Price last confirmed 12 days ago
Retailer 3
-
£17,795 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£17,997 GBP
View
Price last confirmed 9 days ago
Retailer 5
-
£18,091 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
£18,192 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
£18,806 GBP
View
Price last confirmed 13 days ago
Retailer 8
-
£20,078 GBP
View
Price last confirmed 41 days ago
B+
Retailer 9
-
£21,538 GBP
View
Retailer 10
-
£22,944 GBP
View
Price last confirmed 13 days ago
Retailer 11
-
£23,373 GBP
View
Price last confirmed 14 days ago
Retailer 12
-
£24,103 GBP
View
Price last confirmed 8 days ago
Most Expensive
MOH London
BDB36EB4A · Oct 29
£29,864 GBP
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from £21,538 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+
3.05ct Round
£21,538 GBP