Value, Style, Quality, Trust. For 34 years, Cook Diamonds has established a tradition of providing customers with high quality diamonds, fine jewelry, precious gems, quality brand watches, and unparalleled service. We have a large variety of loose stones, mountings, finished jewelry, and high quality watches. Our jewelry collection includes a wide variety of shapes, sizes, and styles ranging from classically simple to highly fashionable. When a truly unique piece is required, we are prepared to design and manufacture a one-of-a-kind creation that will be cherished for a lifetime. Cook Diamonds is known for its friendly and professional staff who is ready to help you surprise the people you love with gifts as special as they are.