▁coron et ▁of ▁a ▁baron ▁or ▁Lord ▁of ▁Parliament ▁in ▁the ▁Sc ots ▁peer age ▁( a ▁plain ▁silver - g ilt ▁circ let ) ▁has ▁six ▁" pe ar ls ". ▁ ▁The ▁ro bes ▁and ▁coron ets ▁used ▁at ▁Elizabeth ▁II ' s ▁coron ation ▁in ▁ 1 9 5 3 ▁cost ▁about ▁£ 1 , 2 5 0 ▁( rough ly ▁£ ▁in ▁present - day ▁terms ). ▁( Pe ers ▁under ▁the ▁rank ▁of ▁an ▁Earl , ▁however , ▁were ▁allowed ▁in ▁ 1 9 5 3 ▁to ▁wear ▁a ▁che aper ▁" cap ▁of ▁estate " ▁in ▁place ▁of ▁a ▁coron et , ▁as ▁were ▁peer esses ▁of ▁the ▁same ▁rank , ▁for ▁whom ▁a ▁simpler ▁ro be ▁was ▁also ▁permitted ▁( a ▁one - pie ce ▁g own ▁with ▁wrap - around ▁fur ▁c ape , ▁designed ▁by ▁Norman ▁Hart nell )). ▁ ▁With ▁the ▁Parliament ▁ro be , ▁a ▁black ▁hat ▁was ▁custom arily ▁worn . ▁The ▁W ri oth es ley ▁G arter ▁Book ▁provides ▁a ▁contemporary ▁illustr ation ▁of ▁the ▁ 1 5 2 3 ▁State ▁Open ing ▁of ▁Parliament : ▁the ▁two ▁du kes ▁present ▁are ▁shown ▁we aring ▁coron ets ▁with ▁their ▁parliament ▁ro bes , ▁but ▁the ▁other ▁L ords ▁Tem por al ▁are ▁all ▁we aring ▁black ▁h ats . ▁The ▁L ords ▁Spirit ual ▁are ▁we aring ▁mit res ▁with ▁their ▁distinct ive ▁ro bes . ▁Mit res ▁ceased ▁to ▁be ▁worn ▁after ▁the ▁Re formation , ▁and ▁the