Permissible and impermissible items of trade

Jewellery which are a symbol of other religions

Q:

  1. If women have gold, silver, and diamond crucifixes, aum, and Buddha jewellery before excepting Islam, what should they do with them? Should they have them melted and redesigned or should they bury them?
  2. What is the punishment for Muslims selling jewellery for kuffaar religions?
  3. Can Muslims wear jewellery that has the name of Allah and ayaat from the Quran in lockets when we don't have wudhu?