These are very old mother of pearl shell beads are a beautiful soft, seafoam green with shades of white, pale green, cream, some grey and some tan. They are truly pearlescent and in the light reflect a myriad of colors and in some of the beads, translucency. The center bead is 5/8 inches diameter or 12mm and they graduate down to 1/8 inch or 4mm at the ends. They have been restrung as the old cotton cord was disintegrating. Silver tone hook clasp. Measure 30 inches long.