A ruby and diamond bracelet and an emerald and diamond bracelet, the first composed of calibre

A ruby and diamond bracelet and an emerald and diamond bracelet, the first composed of calibre emerald articulated links with diamond single stone collet connections, stamped 750, length, 18cm; the second composed of three calibre-ruby articulated links, with four brilliant-cut diamond collet divisions, to two polished link back section, stamped 750 length 18cm, (2) emerald bracelet Gross weight 21g, stamped 750 indicating 18ct gold, Each are of good general condition