Timeless luxury for the modern couple
Welcome to The Diamond Oak, your premier destination for pre-owned Tiffany & Co. engagement rings and fine jewelry. Our mission is to provide our guests with exceptional value and a delightful shopping experience as they search for that special piece to cherish for a lifetime. We take great pride in our extensive inventory of authentic, pre-owned Tiffany & Co. jewelry, all of which undergo a rigorous authentication and restoration process to ensure they are in flawless, mint condition. Our dedication to excellence and the prestige of the Tiffany & Co. brand make us the ultimate resource for those seeking pre-owned Tiffany jewelry.
Tiffany & Co. Engagement Rings
At The Diamond Oak, we offer an exquisite collection of pre-owned Tiffany & Co. engagement rings. Each ring is carefully inspected and restored to its original, breathtaking beauty. We understand the significance of an engagement ring, and we are committed to providing our clients with a stunning, authentic Tiffany & Co. ring that will become a cherished family heirloom. Our collection includes a wide variety of styles, from solitaire settings to intricate, multi-stone designs, ensuring that every client finds the perfect ring to express their unique love story.
Pre-Owned Jewelry from Prestigious Brands
In addition to our extensive selection of pre-owned Tiffany & Co. jewelry, we are proud to offer an elegant assortment of pre-owned pieces from other esteemed brands. Our collection includes stunning jewelry from prestigious names such as Bulgari, Cartier, David Webb, Graff, Harry Winston, and Verdura, as well as exquisite timepieces from Rolex and Patek Philippe. Our master jeweler meticulously inspects and restores each piece to its original luster, ensuring that our clients receive only the finest pre-owned jewelry.
Fine Estate Jewelry
The Diamond Oak is proud to offer a breathtaking collection of world-class, pre-owned estate jewelry from the most revered names in fine jewelry. Our carefully curated selection features masterpieces from Tiffany & Co., Cartier, Bulgari, Harry Winston, and other esteemed designers. These extraordinary pieces represent the pinnacle of craftsmanship and style, and they are sure to become cherished heirlooms for generations to come.
Fine Custom Jewelry
At The Diamond Oak, our master craftsmen are dedicated to creating the ultimate, made-to-order jewelry piece based on your unique specifications and wishes. Whether you are searching for a custom engagement ring, wedding band, or a one-of-a-kind piece of fine jewelry, our expert team will work closely with you to bring your vision to life. We invite you to explore our website or visit our showroom to discover the world of possibilities that awaits you in custom jewelry from The Diamond Oak.
Value and Accessibility
Here at The Diamond Oak, we believe that everyone deserves the opportunity to own exceptional, pre-owned Tiffany & Co. jewelry. That's why we have carefully designed our business model to provide value and accessibility to all our guests. We achieve this by offering a vast inventory of pre-owned Tiffany & Co. jewelry at competitive prices and by curating a remarkable selection of pre-owned pieces from other prestigious brands.
Our dedication to providing value extends beyond our pricing. We offer our clients exceptional service, expert guidance, and a transparent, educational shopping experience. Our team of knowledgeable professionals is here to help you navigate the world of fine jewelry, ensuring that you find the perfect piece to cherish for a lifetime.
The Diamond Oak Journal
Stay informed and inspired with our Diamond Oak Journal, where you'll find personal stories, observations, and diamond knowledge from Alon Mor's 30+ years as a New York Diamond District diamond dealer. Our Journal is a valuable resource for jewelry enthusiasts, featuring articles on various topics, including investing in history, decoding diamond ring cuts, and the power of jewelry in self-expression.
Overall Experience
The reviews highlight the exceptional customer service, professionalism, and quality of products offered by Diamond Oak.
Pricing and Value
Reviewers praised the fair prices offered by Diamond Oak, with some even mentioning that their purchases were valued at a higher price than what they paid. The jeweler's ability to provide authentic and high-quality products at competitive prices is a major plus.
Communication and Responsiveness
Alon and his team were consistently commended for their responsiveness, answering questions and providing updates throughout the purchasing process. This open communication helped build trust and confidence with customers.
Personalized Service
Diamond Oak's team went above and beyond to accommodate customers' needs, whether it was finding a specific piece of jewelry, sizing, or shipping. The personalized service ensured that customers felt valued and appreciated.
Quality of Products
The jewelry purchased from Diamond Oak was consistently described as beautiful, exquisite, and authentic. The quality of the products exceeded customers' expectations, leading to high satisfaction rates.

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