I have done business with Peter and Florence Chen at Opus Jewelers for over 20 years. I bought my engagement ring from them, so did my sister, my best friend, her aunt, three work friends and so on. Opus has also made me some fabulous custom jewelry based on favorite costume pieces that I loved but also wanted to change a bit. I have bought diamonds, pearls and all sorts of colored gemstones from them. All my jewelry appraised very well at my local jeweler and I get compliments all the time.
Call them and go visit!

I have a vintage rose gold ring of my grand grandmother. I been looking for good GOOD jeweler for last 3 weeks, read tons of reviews on yelp and visited dozens of jewelers. I needed to resize my ring from size 8 3/4 to size 4 1/2 saving antique markings on the ring and mount a diamond which was bigger than opening in ring. Peter Chen mounted the diamond the way I wanted with little of prongs showing, perfectly matched the color of prongs (rose gold), and invisibly reinforced the ring from inside. The job was done in a week, much faster than other places in Bay Area for unbeatable price. I am very happy with the service, I talked straight with Peter Chen who is jeweler at Opus, he sketched the work he is going to do to preserve my grand grandmother?s ring and securely mount the diamond. Opus is the great place!!!