Few days back, while I was having a conversation with a non- Muslim friend who wears gold, I told him that Gold is forbidden on Men in Islam.

He was curious and wanted to know the Reason of why gold is forbidden on Men.

These all reated to basically to avoid a lavish life specially as for as jewelry concern it give to human a boasting nature and also lowers down morality because it involves too much towards a material life and thought. You may ask these same about a car and house etc. but if they exceed from the necessity and reached to the level of prideband show off then that thing will also not be permissible.