Custom · Repair · Source · Produce
Custom jewelry, repair, stone sourcing and full-process production in downtown San Francisco.
Send clear photos and a short description. Final estimates may require an in-person inspection.What We Do
We do not publish fixed repair prices online because each item differs in metal, construction, stones and prior work.
Ring sizing, shank work, soldering, chain repair, clasp replacement, prong repair and restoration.
Prong, bead, pavé and custom setting, tightening, replacement and resetting.
Cleaning, polishing, refinishing, rhodium plating and selected specialty finishes.
Watch cleaning, selected repairs, bracelet sizing and link removal after inspection.
Rings, pendants, earrings, bracelets, bangles and heirloom redesign from concept to completion.
Posts, backs, bails, safety chains, catches, clasps and other jewelry components.
True Full-Process Capability
Many people in the trade specialize in only one stage, such as setting or casting. Jianhang Guo has hands-on experience across the full jewelry workflow.
Source & Produce
We can source lab-grown diamonds and develop settings or finished styles around your specifications.
Production support for chains, bracelets, necklaces, earrings, pendants and rings.
Featured bracelet project. Replace this placeholder with the final product story and photos.
See It Worn
Selected jewelry can be shown on AI-generated lifestyle models to help clients visualize scale and styling. AI images should be labeled as illustrative.
Our Story
Jianhang Guo learned jewelry techniques in a factory environment in China and developed hands-on experience across design, wax work, casting, bench work, stone setting, repair and finishing.
This broad foundation allows him to evaluate a piece as a complete structure, not only as one isolated task.
Request an Estimate
Send clear front, back and side photos with a short description.
Visit the Store
833 Market St, Suite 516
San Francisco, CA 94103
Monday–Friday, 11:00 AM–5:00 PM