▁bar onial ▁coron ets ▁were ▁plain . ▁Cor on ets ▁may ▁not ▁bear ▁any ▁pre cious ▁or ▁semi - pre cious ▁stones . ▁Gener ally , ▁only ▁pe ers ▁may ▁use ▁the ▁coron ets ▁corresponding ▁to ▁their ▁ranks . ▁The ▁Bishop ▁of ▁Dur ham , ▁however , ▁may ▁use ▁a ▁du ke ' s ▁coron et ▁at op ▁the ▁arms ▁as ▁a ▁reference ▁to ▁the ▁historical ▁temporal ▁authority ▁of ▁the ▁Prince - B ish ops ▁of ▁Dur ham . ▁ ▁Pe ers ▁wear ▁their ▁coron ets ▁at ▁coron ations . ▁Otherwise , ▁coron ets ▁are ▁seen ▁only ▁in ▁her ald ic ▁representations , ▁at op ▁a ▁peer ' s ▁arms . ▁Cor on ets ▁include ▁a ▁silver ▁gilt ▁chap let ▁and ▁a ▁base ▁of ▁er mine ▁fur . ▁The ▁coron et ▁var ies ▁with ▁the ▁rank ▁of ▁the ▁peer . ▁A ▁member ▁of ▁the ▁Royal ▁Family ▁uses ▁a ▁royal ▁coron et ▁instead ▁of ▁the ▁coron et ▁he ▁or ▁she ▁would ▁use ▁as ▁a ▁peer ▁or ▁peer ess . ▁ ▁Du cal ▁coron ets ▁include ▁eight ▁st raw berry ▁leaves ▁at op ▁the ▁chap let , ▁five ▁of ▁which ▁are ▁displayed ▁in ▁her ald ic ▁representations . ▁Mar qu esses ▁have ▁coron ets ▁with ▁four ▁st raw berry ▁leaves ▁altern ating ▁with ▁four ▁silver ▁balls , ▁of ▁which ▁three ▁leaves ▁and ▁two ▁balls ▁are ▁displayed . ▁Cor on ets ▁for ▁ear ls ▁have ▁eight ▁st raw berry ▁leaves ▁altern ating ▁with ▁eight ▁silver ▁balls ▁( called ▁" pe ar ls " ▁even ▁though ▁they