Ecclesiastical ring gold, stone-set ring. Roman Catholic bishops traditionally have their episcopal ring set with an amethyst. Aside from the rings a bishop purchases or is given by others, his rings belong to the Church; he will have inherited the previous bishop's ring collection, which is held in trust. While all hierarchs are accorded the honor of being buried wearing a ring, all rings belonging to the Church will be returned to the Church upon the retirement or death of any hierarch. In a Decree of Pope Boniface IV (A.D. 610) it describes monks raised to the episcopal dignity as "anulo pontificali
Profession formalized more recently, such as architecture, now have equally long periods of study associated with them. Although professions may enjoy relatively high status and public prestige, not all professionals earn high salaries, and even within specific professions there exist significant inequalities of compensation; in law, for example, a corporate/insurance defense lawyer working on a billable-hour basis may earn several times what a prosecutor or public defender earns. A profession arises when any trade or occupation transforms itself through ""the development of formal qualifications based upon education, apprenticeship, and examinations, the emergence of regulatory bodies with powers to admit and discipline