Rings by Alex Goodman The Splash Rings are chunky cocktail rings that are surprisingly comfortable to wear. The one pictured is with citrine.To give an idea of size the stones are 16mm by 12mm. Features Primary Material : silver Other Materials : citrine One of a Kind : No Hallmarked : Yes Cleaning InstructionsThe silver can be cleaned with a polishing cloth, to clean the stone use hot water, liquid soap and brush lightly behind the stone with an old toothbrush.