Cushion Black Onyx (M)The Cushion Black Onyx is a classic signet ring made of high quality 925 sterling silver, plated in white rhodium to strengthen the surface and prevent tarnishing. The ring comes with a custom cut stone of Black Onyx handset in a sleek bezel to hold the stone. Black Onyx is believed to hold powerful vibrations of protection, strength, focus and willpower. Solid 925 sterling silver White rhodium plating The top plate comes in two sizes: Small size 48