This ring was crafted and meticulously detailed with a masonic symbol in centre on a Onyx black flat background with tiny diamond. Size 22.6 / Z+2 Circa 1930 , don't know exact year but was with my family for decades. Gold electroplating plate stinger stainless steel base-TK316 -jewellery uses highly advanced vacuum/ion plating techniques rather than galvanic plating. Ion plating is also environmentally conscious and avoids chemical solutions, making its finished products irritation-free to the skin. This plating ensures TK316 jewelry is much less prone to tarnishing as opposed to standard costume jewelry. Note: Not taking responsibilities for parcel damage/loss due to courier transportation/custom checks etc.