What is san ramon jewelry store robbery?

As an AI language model, I don't have access to real-time updates on news stories or events that have happened recently. However, according to news reports from December 2017, there was a robbery at a jewelry store in San Ramon, California. The incident occurred on the afternoon of December 23rd, when two suspects entered the store, one of whom brandished a handgun and demanded that the employees hand over cash and jewelry. The suspects reportedly fled in a vehicle, and no injuries were reported.

It is essential to keep in mind that information from news reports can be outdated, and there may be updates or corrections to the story that I may not be aware of.