Beautiful Vintage Cobalt Blue Navettes & AB Rhinestones Brooch on silver- tone

Originally part of a pave set but I do not have the earrings. Blue Glass & AB Rhinestone Brooch This mid-century brooch is a stunning shade of cobalt blue. Thin navette ( marquise shaped) petals radiate out in a spray design under a cluster of aurora borealis chatons ( shape of stone) that form the flower head. The navettes are an intense cobalt blue, and the aurora borealis rhinestones are a lighter blue with underlying flashes of orange. The brooch is 2 inches wide and 1 1/2 wide a depending on which way you wear. Circa 1960s and is in excellent condition. No hallmark Boucher style.