Did hold his eyes locked in his crystal looks.”
The poetic use of crystal has its basis in ancient mystical philosophy, which is partly noticed in the section under CRYSTAL.
DIAMOND
Shakespeare alludes to the diamond twenty-one times, most of all in “Cymbeline.”
Imogen gives Posthumus as a pledge of affection her diamond ring:
“This diamond was my mother’s: take it, heart.”
The diamond is mentioned four times as an important part of the plot in the bargain between Posthumus and Iachimo:
“If she went before others I have seen, as that diamond outlustres many
I have beheld, I could not but believe that she excelled many: but I have not
seen the most precious diamond that is, nor you the lady.”