This Matte black onyx eye ring holds your sunglasses and all of your eyewear in style. The adjustable design lets you personalize the length from 22 to 36 inches. Sterling silver ring and logo with silver details. Onyx is the birthstone for Leo, the fifth sign of the zodiac for those born July 23 to August 22. It is also the anniversary gemstone for those celebrating their 7th and 10th wedding anniversaries. Onyx is derived from the Greek word for "claw" or "fingernail" due to its veins which resemble fingernails.