Amulet made of sterling silver with semi-precious black onyx, a stone of protection, believed to promote physical strength and stamina, is surrounded by black diamonds totaling 0.75 CTTW. Accented with a removable horn pendant, a symbolic shape used to ward off the evil eye. Reverse side on both pendants is etched with Bulova tuning fork logo. Rounded box link chain necklace in sterling silver adjusts from 24" to 26" with extender ring and pear-shaped lobster clasp. Onyx pendant measures 38MM L x 10MM W. All of our sterling silver is rhodium plated to give the jewelry a brilliant shine and provide enhanced durability.