A-list engagement rings always make headlines, but this season’s crop of brides-to-be also happen to be millennials who are setting the trends that can drive sales in your store. Lady Gaga chose a heart-shaped sparkler. Iggy Izalea announced her engagement with a fancy yellow diamond encircled in a white diamond halo. And Julianne Hough’s gorgeous oval diamond mounted in a thin pave band is different with a classic twist. Will […]