SUMMIT – Vivid Stage, in residence at Oakes Center at 120 Morris Avenue in Summit, is celebrating its 30th Anniversary season, marking decades of bringing contemporary theatre to audiences in the state of New Jersey. Coming up is the final episode of the original series, Gemstones, by Phoebe Farber. This episode, which will recap the entire season and wrap up the family’s story, runs Saturday, June 21 at 8:00 pm and Sunday, June 22 at 2:00 pm.