I have a large gold-tone 2 and a half-inch round starburst (?)pin or brooch that is marked Hattie Carnegie in an oval on the reverse. All of the 70-plus (glass?) stones are faceted. A large oval amber-colored center stone is surrounded by about 20 small blue stones, which are surrounded by larger amber or citrine stones, which are surrounded by more blue and amber or citrine stones. I have done an exhaustive search for a pin like mine and cannot find one or the value. Has anyone seen a pin like this?