A collectable or collectible (aka collector’s item) is any object regarded as being of value or interest to a collector (not necessarily monetarily valuable or antique). There are numerous types of collectables and terms to denote those types. An antique is a collectable that is old. A curio is a small, usually fascinating or unusual item sought after by collectors. A “manufactured” collectable is an item made specifically for people to collect.
Although “collectable” is the spelling listed first for the adjective by the Oxford English Dictionary and is standard spelling in British English, the dictionary observes that the “-ible” form is also valid and this has come to be the common spelling in the United States.