About Us

Quadrum Gallery | Best of Boston Fine Jewelry

Quadrum Gallery has proudly stood as a Boston jewelry institution since 1978. With 42 years of experience and a reputation for excellence of both quality and service, founder Cynthia Kagan made a name for the gallery as an exclusive destination for innovative pieces of unmatched craft and design. Representing some of the most talented jewelry designers in the world, Quadrum heralds these talented artists as the very heart of our brand.

Today, owner Sia Maravelias, Assistant Director Amy Renneisen, and the small, dedicated gallery staff are intensely focused on the artistic expression of adornment, as shown in their passion, energy, and devotion.

As one of the nation’s most highly regarded jewelry stores, Quadrum is known by both Bostonians and the world beyond as a treasure within The Shops at Chestnut Hill, just 5 miles outside the city. The gallery extends to embrace a robust worldwide web presence as well, with an always updated inventory of fabulous gems available to enjoy online.

We take immense pride in providing you with an enjoyable shopping experience in a fun and friendly environment. You'll experience a streamlined jewelry buying process, and special customized service for those that desire advance notice of new merchandise arrivals, unmissable events, and exclusive artist appearances.

We look forward to sharing with you the love of all things beautiful!



QUADRUM is truly a destination; it is a place of discovery and inspiration. If you are looking for an ultra-luxe shopping experience, just walk in and you will feel the difference. Enter QUADRUM’s beautiful museum-like setting and experience the very finest representation of artist jewelry showcased in dramatically lit jewel-boxes. You will see the beauty and intricacy of each piece and come to experience the involvement of the most exquisite materials and everything that is beautiful, covetable and refined. Our vast collection will unite you with the perfect fit for a personal statement. It is a collection with an answer for every aesthetic and taste that has come to be widely regarded as the most progressive artist jewelry gallery for every style.

Whatever the occasion, we have it! Whether it is a special gift, the beginning of a life together, an anniversary, birthday or birth of a child, or a spontaneous impulse purchase, we are here to help commemorate the many celebrations throughout your life. Our customers trust us as the premier place to find the very best selections of jewelry from a carefully curated range of exclusive artists from around the world. QUADRUM Gallery offers a relaxed and elegant shopping experience, providing an extensive level of customer service that is unsurpassed and met with the ultimate satisfaction that comes with giving or wearing a beautiful piece of jewelry.



QUADRUM is currently staffed by seven of the most creative, inspiring and vibrant  people you will ever meet, each of whom is completely devoted to QUADRUM, bringing their own unique style and individual talents. Each staff member at QUADRUM has an indisputable passion for jewelry, and an unrivaled expertise in understanding our customer’s needs. They are well versed in gemology and have firsthand knowledge of each of our collections, and the artists we represent. Each member of our staff relishes the challenge of satisfying any jewelry request, and assisting in handling all of your jewelry needs in a personalized manner.

We encourage you to take advantage of our intimate gallery and knowledgeable staff who will be happy to assist you with your selections which best reflect your personality and style. Please accept our warm invitation to explore and discover our distinctive collection of artist jewelry coupled with impeccable service.