The Diamond Ring Company is a premier coin dealer in Hayward, CA specializing in numismatics and rare coins for collectors and investors. We buy and sell coins and precious metals, offering expert evaluation and competitive pricing for both individual pieces and collections. Whether you're a seasoned numismatist or new to coin collecting, our knowledgeable team provides professional service and fair market value.
The Diamond Ring Company is a premier coin dealer in Hayward, CA specializing in numismatics and rare coins for collectors and investors. We buy and sell coins and precious metals, offering expert evaluation and competitive pricing for both individual pieces and collections. Whether you're a seasoned numismatist or new to coin collecting, our knowledgeable team provides professional service and fair market value.
Imported listing assembled from public business information and numismatic directory sources. Some business details may have changed. Confirm directly with the dealer or claim this profile to update it.
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Great experience with Diwali shopping at the store. Highly recommended— Ravi Vijay, Oct 2025
Zain & riz was amazing everything is real and is an official establishment. Can’t wait to come back for more jewelry— Billy Williams, Jan 2026
As always, Diana is the best, always knows what’s best for me in terms of jewels..i always get a quality of jewelry here with reasonable price.. will come back again…— Emma V, Jan 2026
Customer service was great. He tested my chain and cleaned it for me! Highly recommend this spot.— Gilberto Quinones, Nov 2025
Diana has been really helpful and fair every time I come in - been here for my daughter wife and sisters and mothers gifts over the years, definitely recommend her and the team— Abraham rubio, Jun 2025
⭐☆☆☆☆ Heartbroken and Disappointed I’m absolutely heartbroken with The Diamond Ring Company in Southland Mall. My diamond pendant, which holds pictures of my late father and grandmother, has fallen out for the second time. This piece is priceless to me, and instead of standing behind their work or taking responsibility, they told me I’d have to pay $275 again to fix it. It’s not just about the money — it’s about compassion, accountability, and doing right by your customers. I trusted them with something deeply sentimental, and they completely let me down. I’ll never buy anything else from them.— Piaget Reed, Oct 2025
I have gone to this place for many years. They have excellent customer service. What I love the most about this place, they are super honest and you get the best possible price for your jewelry. Any time you bring in your dirty jewelry they clean it free of charge. They often have great deals. I love those 😍☺️.. I would definitely recommend checking them out before anyother jewelry store in the mall…— guadalupe lopez, May 2025
Great experience from start to finish. The staff was friendly, knowledgeable, and made the process easy and enjoyable without any pressure. The jewelry selection is beautiful and high quality. I’m very happy with my purchase and would definitely recommend this store.— Inam Khan, Dec 2025
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