Hmmm ... hard to say exactly; it appears to be hammer-textured (and/or cast) ... I don't think Dogeared does work that substantial. It also looks as though it's a higher-karat of gold (at least 18k, maybe even 20 or 22k).
I would try to look at work by Rebecca Lankford and/or Me & Ro; they both create delicate pieces with texture. She could have also just had it made for her by an artisan, so maybe asking her on Twitter might be the best way to go.
Good luck!