100+ctw TOURMALINE & DIAMOND ENSEMBLE FROM POTTER & MELLEN CLEVELAND OHIO: Tumbled cabochon nuggets of pink and green tourmaline, prong set in 14k yellow gold with diamond accents, approx. 30pts total. Brooch marked Potter Mellen 14k, measures approx. 1 7/8'' x 1 3/8'', screw back earrings marked 14k, measure approx. 7/8'', 47 grams total.