Retail Lobby Hours

Visit the DiamondCore Tools headquarters in El Cajon, CA, about 25 minutes from downtown San Diego. Find all the DiamondCore tools, clay, glazes and more for purchase in one convenient place.

 

Address
DiamondCore® Tools
680 W. Bradley Ave.
El Cajon, CA  92020 

Lobby Access
Monday: 10 am-4 pm
Tuesday: 10 am-4 pm
Wednesday: 10 am-4 pm
Thursday: 10 am-4 pm
Friday: 9 am-noon
Saturday: 9 am-1 pm
Sunday: closed

2026 Holiday Closures
Jan. 1: New Year's Day
Feb. 16: President's Day
April 3: Good Friday

May 25: Memorial Day
July 3: Fourth of July
Sept. 7: Labor Day
Nov. 26: Thanksgiving
Dec. 24-26: Christmas
Dec. 31: New Year's Eve