Rings by Hannah Bedford This signature Hannah Bedford Cluster Ring features a stunning cornflower sapphire nestled in silver granulation. Features Primary Material : Silver Other Materials : Sapphire One of a Kind : No Gems : 3mm cornflower sapphire Hallmarked : Yes Cleaning InstructionsOver time silver jewellery can tarnish. Carefully use a soft toothbrush and warm soapy water to remove any dirt and clean around the granules. Ensure you gently dry the piece well. You can use a silver or gold cloth to restore the shine to a polished piece.