A 14k white gold shamrock encrusted with 4 black onyxes with 2 diamonds embedded into the bail. Clover jewelry is a favorite among those of Irish descent who love the rich Celtic history. Black onyx is the birthstone of December and is believed to boost the wearer's sense of confidence, authority, and ability to be the master of his or her own destiny. Diamonds are thought to provide the wearer with better relationships and increase inner strength.