Trisola Blue Sapphire Ring, T ubogas handcrafted in 18K Yellow Gold and Blue Sapphire Metal: Polished 18K Yellow Gold Blue Sapphire: 0.90ct This ring measures 18mm (0.7") in diameter and 15mm (0.59") in thickness Find your size on the Marina B ring size chart Please note: Marina B ships internationally. If you would like to make a purchase outside of the United States, please contact us at info@marinab.com