Smart jewelers find it all at W.R. Cobb Shop our extensive selection of fine jewelry supplies, plus 60,000+ loose diamonds and the industry's most powerful tools designed to take your business further, faster. Register today and get 24/7 online access to our factory-direct prices, a wide array of gorgeous bridal solutions, design-your-own tools and more, all backed by 130+ years of jewelry experience and the W.R. Cobb guarantee.