COMINGS AND GOINGS >> Paul Tacorian (pictured) has become CEO of Tacori, and sister Nadine Tacorian Arzerounian will become the chief operating officer and will guide design. Their father, Haig Tacorian, who founded the company with wife Gilda in 1969, will become chairman and serve on its board. >> Circa has appointed Alexandra Azrael Lopato director of its new Baltimore location and Ed Hartman director of its Chicago office. >> MJSA has elected Steven A. Cipolla, president of the Warwick, R.I.–based National Chain Group, as chair of its board of directors. He succeeds Ann Arnold, who becomes chair of the MJSA Education Foundation. >> Super Bell Jewelry chairman and CEO Lo Huang has joined the board of directors of Zalemark. >> Graff Diamonds has appointed Meyer Hoffman, previously chief operating officer of Miki