Yes, you can wear a ring during Umrah while in the state of Ihram.
Wearing a ring while in Ihram is permissible according to the majority of Islamic scholars. This includes the Hanafi, Shafi'i, and Hanbali schools of thought, as well as one position within the Maliki school. There are no specific prohibitions against wearing rings during the state of Ihram for men or women.
Therefore, you do not need to remove your ring before entering the state of Ihram for Umrah. It will not invalidate your Ihram or Umrah.
