Usar símbolos religiosos como moda: é haram?

Islam's rulings here are specific and mostly firm. The cross as fashion: for a Muslim, wearing the cross — the emblem of the incarnation-theology Islam denies — is not permissible; scholars treat it as the most basic case of adopting another religion's distinguishing symbol, softened only where the item is worn under genuinely unavoidable circumstances (rare). Amulets (tamaim): the Prophetic condemnations are categorical — 'whoever wears an amulet has committed shirk' (Ahmad; Abu Dawud's narrations bar blessing from the wearer) — because protection sought in objects contradicts trust in Allah; the permitted middle (some scholars): Quran-text amulets (ta'wiz) worn by the sick or children, accepted by part of the tradition with strict content rules (Quran or permitted du'a only) and rejected by others as sliding into the prohibited. Quran-verses as jewelry enter the same analysis with an added respect rule: what carries Quran must not enter bathrooms or be worn into impurity — which makes the pendant a real obligation, not a styling. The Muslim's broader principle: adornment is permitted and even loved ('Allah is Beautiful and He loves beauty'), but the adornment must not carry creed it doesn't hold or trust it shouldn't displace.