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 perfect stone for nighttime wear, a black onyx pendant looks elegant and stylish in white or yellow gold. Ruby is known as the gem of courage. Wearing a ruby pendant can help you get through the trials and tribulations of life.