Well, if you don't want the "g" to be pronounced, you may like to spell it Ysela. In Spanish, two l's are pronounced /y/. Think of long term. Although it's a beautiful name, kids are cruel. Giselle is too close to "gazelle." Spare her the torture of kids making fun of her as an animal. Although a gazelle is one of God's most magestic animals. It depends how you look at it, I guess.