Gemma D'Arcy

As of my last knowledge update in October 2021, there isn't a widely recognized individual or entity specifically named "Gemma D'Arcy." It is possible that "Gemma D'Arcy" could refer to a person or character that gained prominence after my last update, or it could be a lesser-known figure in certain contexts. If you could provide more context or specify the field (such as entertainment, literature, etc.