RETRO DECO AQUAMARINE & RUBY CROWN PIN: 18k yellow gold brooch centered by a large natural aquamarine in an emerald cut, measuring 14.7 x 18 x 9.5 approx. 15ct, above a 5.5mm pearl flanked by two period diamonds approx. 1/4ctw. Natural rubies on each side and across the top of the crown. Approx. 1 1/4'' x 3/4'', 9 grams. Est. $1000/2000**