Ross-Simons - "Fierce Stack" Set of Four Bangle Bracelets Over Sterling. 8". An RS exclusive. Fire up your style game with our "Fierce Stack" of four wild bangle bracelets! This 18kt yellow gold over sterling silver set includes: an .80 ct. t. w. emerald and .26 ct. t. w. diamond bangle bracelet, a brown and black leopard-print enamel bangle bracelet, a green and black enamel tiger bangle bracelet and a classic 18kt yellow gold over sterling silver bangle bracelet. Hinged with figure 8 safety and box clasps. 18kt gold over sterling bangle bracelet set. Diamond birthstones are the perfect gift for April birthdays.