HOT STOCK TIPIrregular SeasonBizzotto’s new Pebbles collection is laden with irregular cuts of gemstones that translate into one-of-a-kind looks that are delicate, organic, and—best of all—accessibly priced. The line features necklaces and earrings, but it’s the rings that prove irresistible. Stone choices include cognac diamonds, sapphires, and rubies. TREND GAMELobe LightsEarring jackets are back in a modern and whimsical way. Styles that hang down and fan out behind the lobe look like skirts on the ear, while slimmer stone or pavé drops add drama to single stone or wider stud designs. You’ve got a perfect sales add-on with this playful earring companion!Stud earrings with jackets in 18k gold with 9.92 cts. t.w. tapered blue sapphires and trillion-cut diamonds; $89,100; Nikos Koulis, Athens, Greece; 30-210-339-2752; nikoskoulis.grRevoada stud earrings and jackets i