These glasses have iridescent crystal bowls and pink stems. The water goblets are 7-1/2" tall; the wines are 5-1/2"; the parfaits are 6"; and the sherbets are 4-3/4". Here are two photos -- one with the flash, which removes the iridescence but shows the optic - and one without the flash.
The iridescence is definitely a treatment--a beautiful mother-of-pearl that does not photograph very well. It is on the bowl, not the stem. It is on the whole bowl inside and out, not just the rim. Whether the iridescence was done by Central or by a decorator firm is unknown.
