(This characteristic is common to sacred gems generally; it is the same as gorinto and hoto referred to above, ishidoro [stone lantern] and giboshi [ornamental top of a railing].)
（この特徴は宝珠全体のもので、先述の五輪塔・宝塔・石灯籠・擬宝珠（ぎぼし）においても同様である）。