Diamonbar Sterling Black and Clear Rhinestone Bracelet Three rows of alternating clear and black rhinestones are elegantly displayed in sterling silver on this stunning bracelet by Diamonbar. Diamonbar jewelry was produced by Wachenheimer Brothers out Providence, RI. The company was in business from approximately 1907 until the early 1930s. Signed Sterling Pat 3-20-17 Diamonbar, measures 7" by 3/8". Excellent condition.