Tiffany & Co. brooch with a 14.10 carat rubelite, 26.14 carats of tanzanites and 3.36 carats of diamonds set in 18 karat yellow gold, circa 1993.
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.