Stunning Antique 1920s European 900 Sterling ancient Roman Coin ring Handmade

Stunning Antique 1920s European 900 Sterling ancient Roman Coin ring Appears to be an authentic coin. We can not verify as we would not dismount to verify that. It is marked 900 silver Appears to be handmade and finished Lovely ring’ appx 18mm round Ring is Sz 7 J391