Macduff: “I see thee encompass’d with thy kingdom’s[kingdom’s] pearl

That speak my salutation in their minds.

(Macbeth, Act V, Sc. 8.)

Constance: “Those heaven-moving pearls.” (See [Crystal].)

(King John, Act II, Sc. 1.)

Othello: ... “Of one whose hand,

Like the base Indian, threw a pearl away

Richer than all his tribe.

(Othello, Act V, Sc. 2.)

King: “Hamlet, this pearl is thine: