Beautiful Ring with Genuine Blue Sapphire, Black Spinel Stone Size: 1 - 8 x 6 mm Ring Face dimensions: 13 x 8 mm Metal: 925 Sterling Silver with White Gold plated Weight: 2,67 grams Ring Size: 55 / Inside diameter 17,5 mm Gemstones are usually treated to improve their color or clarity. This was not investigated in the case of this particular object. The Ring comes in a gift box. Registered, insured shipping with tracking number and proper packaging.