You can give her a bracelet only after the marriage contract has been written.

I am getting married this month Inshaallah.I want to know putting mahr( a ring,Chain or bracelet) on her by myself is permissible? Some say it is not because this is imitating kuffar. A Hindu puts a chain on her and a Christian puts a ring on her on their wedding. I think I can put bracelet or bangle on her…