5mm(2pc), 4mm(1pc), 3.5mm(1pc), 3mm(3pc), 2.5mm(3pc), 2.25mm(1pc), 2mm(2pc), 1.75mm(1pc), 1.5mm(3pc) Round ; Stones available: Amethyst, Garnet, citrine, sky blue topaz, Peridot, rainbow moonstone labadrorite, black spinel, milky aquamarine, carnelian, white quartz etc. We have other stones also, all jewelry rhodium plated, nickle free. 925 stamped