A Legacy of Excellence

TNS Diamonds is a trusted name in the jewelry industry, serving customers with beautiful, high-quality watches, diamonds, and jewelry. Our commitment to quality, transparency, and customer satisfaction has been the cornerstone of our success.

Over Four Decades of Diamond Expertise

Established in 1991, TNS Diamonds builds upon a rich family legacy in the jewelry trade, with roots extending back over 40 years. Located in the heart of Philadelphia’s esteemed Jewelers’ Row, our family-run business has been a trusted source for exquisite diamonds and fine jewelry. From the early days, we recognized the importance of transparency and were among the pioneers to introduce diamond certification and hallmarking, setting a standard for trust and quality that continues to define us today. Our enduring presence on Jewelers’ Row is a testament to our commitment to the community and the lasting relationships we’ve built with our clients over generations.

As a family-run business, we take the time to personally assist each customer, ensuring a tailored and attentive experience. Our knowledgeable team includes onsite jewelers and watch technicians who can provide swift assistance with repairs and custom designs. We pride ourselves on our ability to handle even the most complex jewelry projects, from crafting championship sports rings to creating unique hip-hop pendants. What you see is what you get – all of our product photos showcase the actual item you will receive, never stock images. And if you’re searching for something specific we don’t currently have in our extensive inventory, our sourcing capabilities allow us to locate it for you. Please don’t hesitate to call us with any questions at 215-922-1501.

• Extensive Range of Fine Jewelry: We carry a huge selection of fine jewelry, including necklaces, bracelets, earrings, rings, and lockets, often complemented with various gemstones for a unique and colorful appeal.
• Top-Name Swiss Brand Watches: We are proud to offer a large variety of prestigious Swiss brand watches.
• High-Quality Diamonds for Engagement Rings: TNS Diamonds features a significant collection of high-quality diamonds, perfect for creating stunning engagement rings.
• Custom Design and Complex Projects: Our expertise extends to complex jewelry making, including unique championship sports rings and custom hip-hop pendants.
• Specialty Items: Our unique offerings include diamond watch accessories, diamond bezels, diamond dials, and exotic engagement and wedding rings.
• Jewelry Repair & Appraisal: Our onsite jewelers and watch technicians offer expert jewelry repair services and provide appraisals for insurance, resale, or estate planning purposes, including Swiss watch repair.

• Quality and Craftsmanship: We are committed to providing our customers with jewelry and watches crafted with precision and artistry. Our pieces are designed to be timeless and elegant.
• Transparency and Trust: We believe in transparent and accountable dealings. Our authentication procedures are premium and transparent.
• Customer Satisfaction: Our primary focus is maintaining the satisfaction of our esteemed clientele. We strive to deliver maximum value for your money.
• Innovation and Style: We keep up with the changing habits of jewelry wearing, offering both traditional charm and bold style statements.