18 karat white gold Messika Velvet Rope Top Finger Ring, in the size 42, containing 0.47 carats of a center turquoise and 0.61 carat total of round brilliant-cut diamonds with D-G in color and VS1-VVS2 in clarity.
Take a piece of non-stretchable string, ribbon, thread, or a thin strip of paper. Wrap it comfortably around your ring finger, close to the knuckle.