I'm going to have to disagree. I think its possible that her cutie mark would be an سیب, ایپل blossom, but it wouldn't make much sense. Her talent is most likely crafting (as shown in The دکھائیں Stoppers when she fixed the tree-house) and actually has nothing to do with apples (as far as I can tell). So unless crafting really isn't her talent then I guess the سیب, ایپل blossom would do. However, I think her cutie mark will be something wooden. Maybe a miniature of the tree-house she rebuild.
گیا کیا پوسٹ below is a picture comparing how the tree-house looked before سیب, ایپل bloom fixed it.