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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Ring gems 8 letters:

CATSEYES: Ring gems
OPAL: Popular ring gem.
OPAL: Ring gem
OPALS: Ring gems
RESET: Replace a ring gem
TIGERSEYE: Gem used in the veterinary school class rings?