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Round|Natural|GIA

3.03ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2557749121

Certificate GIA 2557749121

Diamond specifications and retailer prices

From £17,383 GBP
As of November 4, 2026
Save £12,063 GBP (41%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £29,446 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.03ct natural round diamond

This 3.03ct 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 2557749121. Listed at 12 retailers as of November 4, 2026, with prices from £17,383 to £29,446, a £12,063 spread on the same certified stone. MOH London lists it at £29,446. 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

3.03
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2557749121
Dimensions9.12 × 9.18 × 5.74 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
9.12 mm9.18 mm3.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557749121
Side View
Table 60.0%Crown 34.5°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.8%

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: £29,446 GBP|Low: £16,909 GBP|High: £29,881 GBP|Avg: £20,836 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5£17,383 GBP
Retailer 4£18,116 GBP
Retailer 10£18,905 GBP
Retailer 2£19,073 GBP
Retailer 8£19,692 GBP
Retailer 6£19,850 GBP
Retailer 7£20,481 GBP
Retailer 9£21,268 GBP
Retailer 3£22,163 GBP
MOH London£29,446 GBP

41 data points across 10 retailers

12 retailers£17,383 GBP to £29,446 GBP

A
Cheapest Retailer
-
£17,383 GBP
A
Retailer 2
-
£18,116 GBP
View
Final sale: no returns
A
Retailer 3
-
£19,073 GBP
View
A
Retailer 4
-
£19,692 GBP
View
A
Retailer 5
-
£19,850 GBP
View
B+
Retailer 6
-
£20,261 GBP
View
B+
Retailer 7
-
£20,261 GBP
View
B+
Retailer 8
-
£20,481 GBP
View
B+
Retailer 9
-
£20,937 GBP
View
B+
Retailer 10
-
£21,268 GBP
View
B+
Retailer 11
-
£22,163 GBP
View
Most Expensive
B
MOH London
0242D05CB · Nov 4
£29,446 GBP
View
11 more retailers have this diamond
Prices start from £17,383 GBPSave up to £12,063 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
3.03ct Round
£17,383 GBP