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Round|Natural|GIA

3.03ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6551734048

Certificate GIA 6551734048

Diamond specifications and retailer prices

From £25,432 GBP
As of November 5, 2026
Save £17,002 GBP (40%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £42,434 GBP at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551734048. Listed at 9 retailers as of November 2, 2026, with prices from £25,432 to £42,434, a £17,002 spread on the same certified stone. MOH London lists it at £42,434. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6551734048
Dimensions9.22 × 9.27 × 5.73 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather
Top View
9.22 mm9.27 mm3.03 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551734048
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.0%

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 5
Current: £42,434 GBP|Low: £25,432 GBP|High: £43,594 GBP|Avg: £32,069 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£25,432 GBP
Retailer 9£27,303 GBP
Retailer 8£28,303 GBP
Retailer 6£29,085 GBP
Retailer 4£29,751 GBP
Retailer 3£31,240 GBP
Retailer 5£32,490 GBP
Retailer 2£37,618 GBP
MOH London£42,434 GBP

40 data points across 9 retailers

9 retailers£25,432 GBP to £42,434 GBP

A
Cheapest Retailer
-
£25,432 GBP
Retailer 2
-
£27,303 GBP
View
Price last confirmed 33 days ago
B+
Retailer 3
-
£28,303 GBP
View
B+
Retailer 4
-
£29,085 GBP
View
B+
Retailer 5
-
£29,751 GBP
View
B+
Retailer 6
-
£31,240 GBP
View
B+
Retailer 7
-
£32,490 GBP
View
B+
Retailer 8
-
£37,618 GBP
View
Most Expensive
B
MOH London
B31AB6C6D · Nov 2
£42,434 GBP
View
8 more retailers have this diamond
Prices start from £25,432 GBPSave up to £17,002 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
£25,432 GBP