12th Annual Diamonds & Denim Gala and Auction fundraiser for Holy Trinity Catholic School - Sat, Feb 1, 2014 at the Plains Ballroom. Dinner, silent auction, and live auction annual fundraiser benefitting Holy Trinity Catholic School. Social hour begins at 5:30 along with bidding on silent auction items. Dinner at 7:00, followed by live auction at 8:30 p.m.