Gorgeous Juliana (D and E) brooch done with AB rivoli stones accented with AB rhinestones. Those are also accented with the finding called lattice bale finding. The brooch measures 2 inches and can also be worn as a necklace with a chain through the lattice bale as they were used as pendant bales often in D and E jewelry. Great shape. Gorgeous stones.
A variation on this brooch can be seen in my book Juliana Jewelry - The Last Generation on page 55.