Delicate bath for semi-precious stones, pearls and jewellery Connoisseurs Delicate Jewellery Cleaner is formulated to gently cleanse jewelry and revive the shine of your delicate jewelry. Delicate Bath is good for cleaning semi-precious stones such as pearls, opal, coral, onyx, turquoise and jewelry making. 8 FL. OZ. Dip tray and brush included.