Green Onyx Checker Square Sterling Silver Earrings You will get 1 pair of these beautiful Earrings 14mm (Stone Size) and 1 inch long earring. Green Onyx is a soothing stone, said to alleviate fears and worries and to help you to feel at ease within your surroundings. Onyx is a banded variety of chalcedony. The colors of its bands range from white to almost every colour.