The “River of Heaven” necklace, our Piece of the Week debuting at Couture, combines 26 salt and pepper diamonds spaced by Tahitian pearls.
50 Jewelers/50 States: Massachusetts
Located near Boston, Quadrum Gallery appeals to women buying pieces for themselves.

Chestnut Hill, Mass.--In 50 Jewelers/50 States, National Jeweler interviews one retailer in each of the 50 U.S. states to find out how they are meeting the challenges of the changing retail environment.
Cynthia Kagan opened Quadrum Gallery, located just five miles west of Boston in Chestnut Hill, Massachusetts, in 1978. In the nearly 40 years since, it’s garnered a reputation as an independent jewelry design destination.
Today, the store has eight employees, including Director Sia Maravelias and Assistant Director Amy Renneisen.
“We are like a really small family, and we all love doing what we do,” said Maravelias. “Each of us participates in all the many facets of the business, from sales to social media.”
This personal touch extends to Maravelias’ philosophy regarding customer service.
She explained, “There is nothing better than walking into a store and having that one-on-one experience, where you are on a name-to-name basis.”
Maravelias chatted with National Jeweler about serving Quadrum Gallery’s self-purchasing female customer and keeping work fun.
National Jeweler: What’s the biggest challenge your store is facing?
Sia Maravelias: Bridal has been a challenge for us, as we feel like the current market is evolving.
Our ultimate goal and top priority is to provide the greatest level of customer service possible, connecting, and hunting for the perfect pieces for our clients spread out all over the world. That is why we are so passionate about every little detail that goes into what we do, from our carefully curated selection of artists, to our photography, to our website, to our display cases and how we represent our designers.
NJ: What’s the top-selling brand and category at your store?
SM: Our clients love colored gemstone jewelry and Jamie Joseph, Barbara Heinrich and Gabriella Kiss are highly coveted.
NJ: Who is your regional customer?
SM: Our customer is predominantly a female self-purchaser who has an appreciation for beautifully crafted artist jewelry and loves to treat herself.
Our clients come to us because they trust us and value our time and knowledge in bringing them what we think is the very best.
NJ: What’s the most popular style of engagement ring with your clientele now?
SM: All of our engagement ring purchases are unique. We love that our customers seek one-of-a-kind rings that speak to them and their love.
NJ: Which social media accounts are important to your business?
SM: Instagram is number one. It’s a great way for us to connect with our customers and reach a broader audience.
We have one account for the gallery, @quadrumgallery. It allows us to instantly showcase new arrivals (to the store). We also like to give our followers a personal view of our favorite pieces with ideas on how to stack and mix-and-match metals and designers.
We also love how Pinterest has become this amazing way for people all over the world to discover us.
Both Instagram and Pinterest drive a huge amount of traffic to our e-commerce site.
NJ: How is your e-commerce doing?
SM: Our e-commerce site, www.quadrumgallery.com, has shown great growth year after year. It is absolutely essential for us to have an online presence. It is an ongoing, evolving project that we are continually perfecting.
We also find that our local clients love to pre-shop our site so that when they come into the gallery they have ideas of what they want to try on in person.
NJ: What’s the best piece of advice you’d offer to other independent jewelry stores?
SM: Stay current and open an Instagram account if you haven’t yet--that’s where it’s at!
NJ: What’s a fun fact about you we can share with our readers?
SM: (Our staff) loves to party! (We celebrate) every opportunity possible--birthdays, anniversaries--and always with Veuve Clicquot!
The Latest

This year’s inductees include second-, third-, and fourth-generation jewelers.

The author, speaker, and entrepreneur will give his presentation, “Spiritual Billionaire,” on Saturday morning.

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach on Sunday night.


Signet will integrate the online-only, natural diamond-focused jeweler into Blue Nile, which it wants to position as a higher-end retailer.

These up-and-coming jewelry brands are bringing their distinct aesthetic and unique point-of-view to the Design Atelier for the first time.

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

The lab’s proprietary diamond cut grade has been expanded to include the popular fancy shape.

This year, it’s what could happen outside of show hours that worries JSA Executive Vice President Scott Guginsky.

High-end fashion houses know how to emotionally connect with customers online. Retail jewelers should take note, Emmanuel Raheb writes.

The designers are the third cohort of mentees from the show’s Belonging @ Couture mentorship program.

Buying discipline at trade shows starts with clarity about your inventory levels, Smith writes.

The trade show’s education series returns, with sessions on retail trends, AI, watches, marketing, corporate responsibility, and more.

The Curated Designer Project has expanded to highlight eight independent jewelry designers during CBG’s Las Vegas show.

Bring a cool tone to your summer jewelry with these white metal pieces.

The deal closed this week, which means Instore will produce the JA NY show slated to take place this fall.

The company’s jewelry sales were up in Q4 and the fiscal year, with Richemont raising prices in part because of the cost of gold.

The “Bauble” capsule collection of colorful one-of-a-kinds includes our Piece of the Week, the “Bauble” earrings, featuring rose zircon.

The updated catalog has a newly dedicated section for gift wrapping.

Everett covers colored stones’ surging popularity, the mellow return of the “Mellon Blue,” and his “The Devil Wears Prada” doppelgänger.

Fourth-generation CEO Lilly Mullen wants to emphasize experience, connection, and personalized service.

The new award, created in partnership with Henne Jewelers, honors the late designer’s legacy through supporting jewelry education.

The addition of the diamond-producing countries as nation affiliated members broadens the federation’s global representation, WFDB said.

The NYPD is warning elderly New Yorkers to keep their jewelry hidden when walking outside to avoid being a target.

Designer Viviana Langhoff has realized her dream of owning a space for her Chicago jewelry store that looks and feels like her brand.

The sessions will run from Friday, May 29, to Sunday, May 31, with one being a live taping of an episode of Couture’s podcast.


























