In the “Comedy of Errors,” the diamond is twice mentioned:
The Courtezan: “Give me the ring of mine you had at dinner,
Or for my diamond, the chain you promised.”
(Act IV, Sc. 3.)
The Courtezan: “Sir, I must have that diamond from you.”
(Act V, Sc. 1.)
In Act 3, Scene 3, in “The Merry Wives of Windsor,” Falstaff says to Mistress Ford:
“I see how thine eye would emulate the diamond.”
The Princess in “Love’s Labours Lost,” Act 5, Scene 2, speaks of a
“Lady walled about with diamonds.”