The Silver Swirl Ring, Amethyst, Undersea: our swirl rings are classic, full of movement, and so very magical. This collection of fluid designs is very versatile and attractive. The 'undersea' feature comes from the bubbles and dots that make this resemble barnacles. This piece is set with a genuine Amethyst, an oval cut stone measuring 6 x 4 mm, tucked down low in sturdy bead prongs. This beautiful gem is traditionally the birthstone of the month of February, purple is a very royal color! As this design is made to sit fairly low in profile on the finger it makes the piece very functional as well as beautiful. The measurements of this item are as follows: measures 12mm on the top, tapering to 3mm on the very bottom. Swirls, beads, dots and curves comprise this design, as well as the single gemstone for a pop of color, and the workmanship is solid, built to last many years. Cast in solid Sterling Silver, the weight of the ring is approximately 7.4 grams.