Ross-Simons - 20.00ct t. w. Multicolored Tourmaline Bead Bracelet, 18kt Yellow Gold Over Sterling. 8". Put some stylish color into that stack! Our richly hued bracelet features 20.00 ct. t. w. rondelle faceted multicolored tourmaline beads stationed with glossy 18kt yellow gold over sterling silver spacers. Springring clasp, multicolored tourmaline bead bracelet.