Sice the early 1900's, art-deco has been a prominent design style. In fashion, architecture, and visual design, art-deco is a lasting inspiration to artists off all types. These Opal designs capture the elements of the art-deco trend and turn you into a work of art. This birthstone of October has a luminosity and glow that makes an opal the treasure that it really is. The rainbow of colors on a neutral white background makes an opal ring a perfect match for any outfit. Black and gold make a beautiful and elegant combination. A black onyx ring is a perfect accessory for any outfit.