Hardrock Summit
National Western Center
The Fall Show for the Finest Minerals, Fossils, Gemstones & Jewelry
Show week
Denver Gem & Mineral Showcase 2027
- September 9–18, 2027
- Denver, Colorado
- 2 shows
Every September, several gem and mineral shows run in Denver at the same time — in 2025 there were twelve separate shows over 14 days.
The oldest is the Denver Gem & Mineral Show of the Greater Denver Area Gem & Mineral Council, held since 1967; in 2026 it ran together with the Hardrock Summit at the Westin Westminster. From 2027, the Hardrock Summit and Hart's Denver Gem Show share the new National Western Center campus — as two shows that keep their own identities.
Below are the shows we list, with their dates, opening hours and admission.