I have the same bracelet and I just try not to look at the marks haha. Every time I lotion up my arms I have to ignore it! I’m sure this is a no-no but every time I take a shower I wash my onyx motifs with my shampooey hands. It keeps it pretty clean!I like the onyx, too. The color contrast is beautiful! It may sound weird, I can see the fingerprints on the onyx, it low key irks me. When light reflects off of it, it temporarily makes the stone look superficially dull. I know this is minor, can anyone relate?