The legacy of 115-year-old Valobra Master Jewelers deepened with the opening of its second Houston boutique, in the heart of River Oaks. Franco Valobra invited three of the world’s top chefs — Daniel Boulud, Thomas Keller and Jerome Bocuse — to create a foodie-fabulous experience in a tent erected outside the massive new store on Westheimer near Shepherd. But even the beautiful bites couldn’t top the sights of the coveted Farnese Blue diamond and the Golden Eye diamond, both on exhibit for one night only.