At Shane Co., we're Bay Area's friend & jeweler. Our four generations as a family business give us the expertise to help you with all your fine jewelry needs. See our incredible loose diamonds and colorful gemstones up close, then choose your favorite to design your dream engagement ring. We're proud to offer a wide selection of pieces created by our in-house design team, from wedding bands to gifts for any occasion. Plus, our fine jewelry is protected by our free unmatched lifetime warranty.