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 Onyx designs capture the elements of the art-deco trend and turn you into a work of art. A pair of black onyx earrings are an affordable and elegant gift. Always appropriate and always in style, black onyx should be in every jewelry box. The birthstone of February, amethyst makes an appropriate and affordable gift. A pair of amethyst earrings in a stud or dangly design are always popular and always in style.