Beautiful! :) Could you tell me what the stone is in this ring? Is this ring marked 925 in the band? Is the stone "open" on the back side or is it closed in with the silver? ( Sorry for so many questions, I just couldn't tell from the pic's. I love the design of this ring and it is in my size. I have metal allergies so I wanted to make sure is is Sterling Silver, and marked.) TY for understanding! :) Thanks in advance for your info! :) Watching this Beauty! :)