This month's Loomis Basin Chamber of Commerce mixer will have a backdrop of diamonds: it's being hosted by Carte Jewelers at its new location at 5600 Pacific Street in Rocklin (across from the post office). The mixer runs from 5:30 to 7:30 p.m. Host Roy Arriaga promises good times and good food. "It's a great time start your Christmas shopping," Arriaga said. For more information, call the Loomis Chamber office at 652-7252.