▁Ch ard onn ay ▁and ▁essentially ▁produced ▁in ▁the ▁heart ▁of ▁the ▁C ô te ▁des ▁Blan cs , ▁in ▁the ▁kingdom ▁of ▁two ▁exception al ▁Gr ands ▁Cr us ▁: ▁C ram ant ▁and ▁Av ize . ▁The ▁Ch ard onn ay ▁from ▁these ▁v ine y ards ▁has ▁an ▁incred ible ▁subt le ty . ▁It ▁is ▁aged ▁for ▁ 5 ▁years ▁and ▁then ▁ 6 ▁more ▁month ▁after ▁dis g org ing ▁( ▁deg org ement ) ▁to ▁att ain ▁his ▁perfect ▁m atur ity . ▁ ▁C uv ée ▁de ▁Pr est ige ▁ ▁Crist al ▁▁ ▁The ▁first ▁C uv ée ▁de ▁Pr est ige ▁( Pr est ige ▁C uv ée ) ▁of ▁Champ agne ▁was ▁created ▁in ▁ 1 8 7 6 ▁by ▁Louis ▁Ro eder er ▁to ▁satisfy ▁the ▁demand ing ▁t ast es ▁of ▁Ts ar ▁Alexander ▁II ▁and ▁is ▁called ▁Crist al , ▁referring ▁to ▁the ▁aspect ▁of ▁the ▁bott le . ▁In ▁ 1 8 7 6 , ▁Ts ar ▁Alexander ▁II ▁pointed ▁out ▁to ▁his ▁som mel ier ▁that ▁the ▁design ▁of ▁a ▁standard ▁champ agne ▁bott le ▁made ▁the ▁beautiful ▁colour ▁and ▁e f fer ves c ence ▁invisible ▁to ▁the ▁eye . ▁He ▁therefore ▁requested ▁of ▁Ro eder er ▁that ▁his ▁personal ▁cu v ée ▁be ▁served ▁in ▁bott les ▁made ▁of ▁transparent ▁cry stal ▁glass ▁with ▁a ▁flat ▁bottom ▁( to ▁fo il ▁the ▁insert ion ▁of ▁explos ives ▁in ▁the ▁ind entation ▁by ▁would - be ▁assass