To schedule a VIRTUAL CUSTOM DESIGN APPOINTMENT, please call or text us at 215-987-3534.

Our retail store is currently closed.

We look forward to seeing everyone again once the COVID-19 crisis is controlled.

Stay tuned for the launch of our online store!

the new classics

herkimer diamonds

custom-made engagement rings

mens wedding bands

womens wedding bands

what they're saying

Love this store!
Their custom-made engagement rings are so beautiful! I spoke with the owner and he explained that he meets one on one to design the ring with the couple/fiancés.

Christie, Philadelphia

To say this store is amazing is an understatement. I have lived around the corner from Workshop Underground for a few years now, and have amassed quite a collection of their jewelry. Every time I wear one of their pieces, I receive raving compliments. Whether it’s a necklace, bracelet, or earrings, the quality and style is top notch. Recently, I had a necklace specially made for my niece for the holidays. The necklace was designed and completed within three days! The customer service is truly next level.

Briana, Philadelphia

Ruben designed my (now) wife's engagement ring and it was absolutely perfect. I really didn't know exactly what I wanted, but Ruben incorporated my ideas beautifully and I couldn't have been happier with the result.

Fraser, Philadelphia


come downstairs to the Underground.

discover vintage objects & bar essentials.

open fridays, saturdays, or by request.