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The USBID continues to provide clean and safe services to the district under the City & County of San Francisco’s Shelter-In-Place policy, as BID services have been deemed essential. Please note that during this time, many stores and restaurants in Union Square may have temporarily updated their business hours extended through at least May 3rd.
To report a clean or safe incident, please contact Member Services at 415-781-4456 or Member Services are available 6:30am–10:30pm daily.

To report an overnight safety incident between 10pm–6am, please contact Legion Security's dispatch number at 415-724-2909. Stay safe, stay healthy, keep washing your hands, and we look forward to seeing you soon.

For on-going San Francisco alerts, text: COVID19SF to 888-777.

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Union Square Business

Jahan Diamond Importers


Mon. - Sat. 10:30 am - 5:30 pm
Sun. Closed

275 Post Street | Directions
Established fine jewelry store in the heart of San Francisco. They are direct diamond importers, catering to the trade as well as to the public. They believe that quality diamonds make the true beauty of a piece of jewelry, that is why they hand select and inspect each diamond for it's cut, polish and location of inclusion. They have a large inventory of GIA certified diamonds as well as diamond settings. They have graduate GIA gemologists in house to help you in any aspect of your purchase of engagement rings. Their staff is very experienced, knowledgeable and friendly.