A word you find once in a while — it seems to be falling in popularity — is recherché. If you want to point out that something is rare, refined, and sought out with great care, while simultaneously implying that you yourself are refined and elegant (and quite possibly a bit pretentious), you’d describe the thing as recherché.
Recherché is French, which I guess is fairly obvious (in modern American English, putting an accent over a vowel is generally taken to mean ‘hey dude, this might be French’), where it’s simply “researched”.
The word has been used to great effect in literature, where it’s been used by writers from Mark Twain (in Innocents Abroad, for example) to G.K. Chesterton to Bill Nye. So go search it out; recherché is quite recherché.
