rising, ascension, ascent, rise - a movement upward; "they cheered the rise of the hot-air balloon"

chassis - a metal mounting for the circuit components of an electronic device

collet - a band or collar that holds an individual stone in a jewellery setting

frame, framing, framework - a structure supporting or containing something

mat, matting - mounting consisting of a border or background for a picture

mount, setting - mounting consisting of a piece of metal (as in a ring or other jewelry) that holds a gem in place; "the diamond was in a plain gold mount"

passe-partout - a mounting for a picture using gummed tape