The phrase 'fitting symbol' is correct and can be used in written English.
You could use it in a sentence such as "The white dove was a fitting symbol of peace and harmony".
The stolen sword is a fine introduction into who Dario was--a fitting symbol of the poet's worldliness.
It was a fitting symbol for the stormy years ahead.
-- but it was a fitting symbol for his season.
Fiat Tagliero is a fitting symbol of hope for a remarkable city.
The toast was a fitting symbol of USA Basketball's Olympic renaissance.
Monday's B.C.S. title game was a fitting symbol for New Orleans.
The owner's racing manager, Barry Simpson, considers this filly a fitting symbol of Cecil's gifts.
China's most famous architectural deterrent to foreign interaction was a fitting symbol for those reporting on the country.
It is a mini altar to family values and a fitting symbol of the minivan's enduring values.
The enigmatic Lear was a fitting symbol for a band who were carving out a niche as pop's perfect artefact.
