Marlborough, MA Jewelry Show (October 23-25, 2026)

The International Gem & Jewelry Show (InterGem) returns to Marlborough, MA from October 23–25, 2026 at the Royal Plaza Trade Center, 181 Boston Post Road West. Founded in 1967, InterGem is America's longest-running direct-to-consumer jewelry show, bringing wholesalers, manufacturers and designers together under one roof so shoppers can buy directly from the source. Offerings include diamonds, beads, pearls, opals, fine jewelry, precious and semi-precious gemstones, engagement rings, watches and more. Show hours are Friday 12pm–6pm, Saturday 10am–6pm and Sunday 11am–5pm. Children under 9 are not permitted and photography is not allowed.