You are viewing a fine quality 18K yellow gold ring in a Retro style mounting made in the 1960's. The ring measures 19 mm or 3/4" long up the finger by 17 mm across. The ring sits up off the finger 10 mm or just under 1/2". The ring is set with a beautiful natural rich blue Sapphire weighing around 1 carat. Surrounding the Sapphire are fine quality Diamonds (vvs2-h) set in white gold weighing around 1/2 carat in total. The ring is marked: 18K. It is a size 6 1/2 and can be re-sized. The ring weighs 10.4 grams.