A ducal coronet is a golden circlet with eight gold strawberry leaves around it (pointing up from it).
The coronet itself is chased as if in the form of jewels (like a royal crown) but is not actually jewelled.
It has a crimson cap (lined ermine) in real life and a purple one in heraldic representation. It has a gold-threaded tassel on top.
The number of strawberry leaves and lack of pearls is what distinguishes a ducal coronet from those of other degrees of the peerage
THE DUCAL CORONET has undergone several modifications in form since it was first introduced in 1337.
When Prince Edward of Woodstock, better known as the Black Prince, was created Duke of Cornwall by his father, EDWARD III.
As now worn, it has eight golden leaves of a conventional type - the "strawberry leaves," so called - set erect upon a circlet of gold, and having their stalks so connected as to form a wreath.
Of late years this coronet has enclosed a cap of rich crimson velvet surmounted by a golden tassel and lined and "guarded" with ermine.
A smaller version, above, is worn by duchesses at coronations.
Peeresses' coronets sit on top of the head, rather than around it.
Non-royal dukes represent the highest hereditary degree of the peerage.
All non-royal dukes have the right to wear a coronet bordered by eight strawberry leaves, a motif which is shown above as well as used on the lights in the armoury hall at Inverary Castle in Argyllshire. The depicted coronet belongs to His Grace the Duke of Argyll and was last worn at the coronation of GEORGE VI.First published in April, 2010.