Prayer: Is It Permissible for Men to Wear White Gold Rings?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Is It Permissible for Men to Wear White Gold Rings?

English:

Question #441:

What is the rule of wearing white gold rings by men?

Answer #441:

If the so-called white gold is the known yellow gold which is mixed with a substances that makes its color white, it is ḥarām. While if the amount of gold in it is so small that in the common view it is not called it gold anymore, it is not forbidden to wear it. Platinum is also no problem.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer