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Round|Natural|GIA

1.21ct F FL Round Natural Diamond

EX • F/FL • GIA 6555155245

Certificate GIA 6555155245

Diamond specifications and retailer prices

From £5,569 GBP
As of November 1, 2026
Save £4,257 GBP (43%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £9,827 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6555155245. Listed at 19 retailers as of November 1, 2026, with prices from £5,569 to £9,827, a £4,257 spread on the same certified stone. MOH London lists it at £9,827. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555155245
Dimensions6.76 × 6.81 × 4.26 mm
L/W Ratio1.01
Top View
6.76 mm6.81 mm1.21 ctF / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555155245
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

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 1
Current: £9,827 GBP|Low: £5,569 GBP|High: £9,854 GBP|Avg: £7,145 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 4£5,569 GBP
Retailer 3£5,604 GBP
Retailer 13£5,679 GBP
Retailer 14£5,866 GBP
Retailer 19£5,930 GBP
Retailer 6£6,012 GBP
Retailer 15£6,779 GBP
Retailer 7£6,941 GBP
Retailer 17£6,952 GBP
Retailer 8£7,004 GBP
Retailer 16£7,154 GBP
Retailer 10£7,165 GBP
Retailer 12£7,772 GBP
Retailer 18£7,944 GBP
Retailer 11£8,332 GBP
Retailer 9£8,746 GBP
Retailer 2£9,204 GBP
Retailer 5£9,657 GBP
MOH London£9,827 GBP

24 data points across 19 retailers

19 retailers£5,569 GBP to £9,827 GBP

A
Cheapest Retailer
-
£5,569 GBP
A
Retailer 2
-
£5,604 GBP
View
A
Retailer 3
-
£5,679 GBP
View
A
Retailer 4
-
£5,866 GBP
View
A
Retailer 5
-
£5,930 GBP
View
A
Retailer 6
-
£6,012 GBP
View
B+
Retailer 7
-
£6,779 GBP
View
B+
Retailer 8
-
£6,941 GBP
View
B+
Retailer 9
-
£6,952 GBP
View
B+
Retailer 10
-
£7,004 GBP
View
B+
Retailer 11
-
£7,154 GBP
View
Retailer 12
-
£7,165 GBP
View
Price last confirmed 11 days ago
B+
Retailer 13
-
£7,772 GBP
View
B+
Retailer 14
-
£7,836 GBP
View
B+
Retailer 15
-
£7,944 GBP
View
B+
Retailer 16
-
£8,746 GBP
View
B
Retailer 17
-
£9,204 GBP
View
B
Retailer 18
-
£9,657 GBP
View
Most Expensive
B
MOH London
87F3DDF8A · Nov 4
£9,827 GBP
View
18 more retailers have this diamond
Prices start from £5,569 GBPSave up to £4,257 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
1.21ct Round
£5,569 GBP