The ruling on selling Gold Rings to Men if they will wear them
Question :
What is the ruling on selling gold rings that are specifically for men to wear if the merchant is certain that the buyer will wear them?
Answer:
Selling gold rings to men, if the salesman knows that the buyer will wear them or it seems likely to him that he will wear them, then selling them to him is forbidden. This is because gold is forbidden for the males of this Ummah. So, if he sells it (gold) to someone that he knows will wear it or he thinks he will probably wear it, then he has aided in the committing of sin. Indeed Allâh prohibited cooperating for sin and transgres- sion. Allâh, the Most High, said:
"And cooperate in righteousness and piety and do not cooperate in sin and transgression."
Also, it is not permissible for the goldsmith to make gold rings for men to wear.
Source:
Ash-Shaykh Ibn 'Uthaimin
Fatawa Islamiyah, Vol. 4 Pages 403-404