All You Need Is LavaFrom the Fire & Ice collection by Australian pearl jeweler Autore comes an 18k gold and titanium (favored for its light weight) pendant necklace inspired by molten hot lava. A dozen round 11 mm–14 mm Tahitian pearls are complemented by a 0.06 ct. orange sapphire, 0.43 ct. t.w. colorless diamonds, 3.18 cts. t.w. natural uncut diamonds, 18.25 cts. t.w. black diamonds, and a 3.65 ct. Australian black opal. The suggested retail price is $75,000. (Autore, West Hollywood, Calif.; 310-860-2680; pearlautore.com.au)Lustrous Relief EffortsTom Shane’s recent pearl promotion was one part philanthropy and one part business savvy. The owner of Shane Co., with 20 stores in 13 states, offered to donate 10 percent of all cultured pearl sales from March 21 to April 17 to relief efforts benefiting Japanese survivors of the Great Sendai Earthquake and Tsunami; 50 percent wil