Vintage Art Deco bezel set gorgeous vibrant amethyst purple crystal riviere circle brooch, open-backed rhinestones in silver tone

Delicate vintage Art Deco brooch with stunning amethyst purple coloured crystal stones claw and bezel set in silver tone. The rhinestones are set in an open-backed setting to allow the light to penetrate. The colour is absolutely gorgeous and seems to glow in the light, giving slightly different shades in different lights and on different backgrounds. The brooch is about 1.75 inches in diameter and has a pin and early, simple 'C' clasp. It is in very good vintage condition - the crystals are fabulous. This is identical, apart from in colour, to another brooch I have listed, but in citrine yellow.