925 Silver Created White Opal October Birthstone Inlay Band Ring Classic Synthetic Opal Ring Stone: 3.5mm L x 7mm W Material: Sterling Silver, Synthetic Opal, Rhodium Plating Measure: 5.5mm Band Width Weight: 4.66 grams Classic Synthetic Opal Ring Stone: 3.5mm L x 7mm W Material: Sterling Silver, Synthetic Opal, Rhodium Plating,Measure: 5.5mm Band Width,Weight: 4.66 grams