About Us

For over 35 years, we've proudly stood at the heart of Philadelphia's historic Jewelers’ Row—at the iconic corner of 8th and Chestnut—operating as National Watch and Diamond. What began as a humble endeavor dealing in a variety of unique pieces has evolved into a refined focus on what we do best: sourcing and offering exceptional pre-owned timepieces, with Rolex as the centerpiece of our collection. Alongside, we continue to purchase a broad range of valuables from customers who value discretion and trust.

Driven by a passion for excellence, we launched SellMyJewelry.com, a trusted digital platform enabling people across the country to sell their cherished items safely, transparently, and conveniently—redefining what it means to engage with a jeweler online.

As Jewelers’ Row faces the challenges of time and transformation, our commitment to personal service and quality remains unshakable. It’s a legacy of integrity that continues to guide us every step of the way.

In the summer of 2024, we embraced a bold new chapter. We relocated to the vibrant elegance of Rittenhouse Square and proudly reintroduced ourselves as Rittenhouse Estate Buyers—a name that reflects both our roots and our refined direction.

For decades, we specialized in behind-the-scenes sales—wholesale transactions and prestigious auctions. Now, with our new retail location, we’re thrilled to offer our curated collection directly to the public. Every piece is expertly polished and professionally refinished to showroom perfection. Our clients enjoy 30–60% savings off retail prices, with select high-retention items like luxury watches and designer jewelry offered at exceptional value.

Our ever-changing inventory rivals that of the finest stores in Philadelphia. From luxury timepieces and diamonds to engagement rings, estate jewelry, precious metals, collectible coins, and even rare sports cards and memorabilia—we pride ourselves on offering something extraordinary for every collector and connoisseur.

At Rittenhouse Estate Buyers, trust is not just a principle—it’s our promise. With over three decades of expertise, a reputation built on transparency, and a relentless focus on client satisfaction, we are honored to serve as your trusted partner in the world of fine jewelry and valuables.

Sincerely,
The REB Team

Hours of Operation

Philadelphia
Rittenhouse Square

250 S. 18th Street
Philadelphia, PA 19103

800.636.6000

Hours of Operation

Walk-ins welcome, appointments highly recommended

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

Closed
11AM - 5PM
12PM - 7PM
11AM - 5PM
11AM - 5PM
11AM - 4PM
Closed

Cherry Hill
NJ Coming 2026

On Haddonfield RD, near the Cherry Hill Wegman’s

Questions? Comments? Concerns? Let Us Know!