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Senior Management

Laurence R. Grunstein

CEO

Mr. Grunstein is a senior level executive in the jewelry industry, with more than 40 years experience and an extensive background in marketing and finance. He has worked in both the luxury and middle market segments of the industry, successfully managing major watch brands. Most ...

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Laurence R. Grunstein CEO

New York City
Mr. Grunstein is a senior level executive in the jewelry industry, with more than 40 years experience and an extensive background in marketing and finance. He has worked in both the luxury and middle market segments of the industry, successfully managing major watch brands. Most recently, he served as President, Managing Director & CEO of Citizen Watch Company in the United States, Canada, and the United Kingdom. He was previously the Executive Vice President & Chief Operating Officer of the company that distributed and/or produced such brands as Piaget, Corum, and Movado.

Laurence R. Grunstein

CEO View bio

Richard Tilles

PRESIDENT

Mr. Tilles started his career buying and selling antique jewelry and diamonds in New York City’s diamond district nearly 30 years ago. "At that time, there were auctions, pawn shops and maybe your local jeweler if you wanted to sell your diamonds and jewelry,” Tilles ...

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Richard Tilles PRESIDENT

Mr. Tilles started his career buying and selling antique jewelry and diamonds in New York City’s diamond district nearly 30 years ago. "At that time, there were auctions, pawn shops and maybe your local jeweler if you wanted to sell your diamonds and jewelry,” Tilles says. "There really wasn’t a branded company buying high-end diamonds and jewelry from private individuals." The potential reach of the Internet sparked the idea to advertise nationally and purchase diamonds and estate jewelry directly from the public. CIRCA was created to provide the same luxurious experience to sellers that they may have received as buyers of jewelry, years prior. But it was the appeal of a personal and private transaction that would make the business a success. “Within a few years, we had opened up four additional locations. Each office had an expert buying diamonds, watches and jewelry and providing a trustworthy luxury experience to our clients in different parts of the world.” Tilles kept and nurtured his relationships with other leaders in the industry, many of whom count on his expertise and savvy.   I have worked with Richard for 15 years and have always been impressed by the range and depth of his knowledge. When the Kwiat family purchased Fred Leighton, Richard was a trusted advisor, and he helped us evaluate the inventory. He is the consummate professional, an industry leader with the highest of ethical standards. - Greg Kwiat CEO, FRED LEIGHTON   I’ve been lucky enough to know and do business with Richard for most of my jewelry career. In every instance where we’ve done business, his understanding and ethics have always been of the highest standard. His desire for quality, respect, professionalism and attention to detail continue to inspire me. - Mark Emanuel, co-owner DAVID WEBB

Richard Tilles

PRESIDENT View bio

Jeffrey Singer

Senior Vice President

Jeffrey Singer’s encyclopedic knowledge of jewelry and watches is legendary, but it is his unbridled enthusiasm for the subject matter that’s so infectious. Mr. Singer comes from a long line of jewelers, and his childhood was spent looking at and studying precious pieces. “I loved being ...

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Jeffrey Singer Senior Vice President

NEW YORK CITY, GREENWICH, SHORT HILLS
Jeffrey Singer’s encyclopedic knowledge of jewelry and watches is legendary, but it is his unbridled enthusiasm for the subject matter that’s so infectious. Mr. Singer comes from a long line of jewelers, and his childhood was spent looking at and studying precious pieces. “I loved being in my family’s office, listening to my father and his siblings as they evaluated beautiful jewelry,” he allows. “I remember how impressed I was with every piece of jewelry I saw. I’m sure some of the things I saw were spectacular and some not, but at seven years old I thought they were all treasures.”   Singer trained arduously and rose through the ranks of his family’s estate jewelry house, New York-based M and L Singer, which remained a leader in the industry for more than 50 years. It was through his vast experience that Singer saw a void that existed when it came to the private sale of personal jewelry. To that end, he and his team opened SellJewelry in 2000. The goal was this: Give clients a way to sell their unwanted jewelry by providing unparalleled service, total discretion, and a luxurious environment. In 2005 SellJewelry was rebranded as CIRCA, where Singer remains a Co-Founder and Vice President. Singer treats every client with care. “Selling jewelry is not an everyday event for people, and I understand that,” he says.  “We may buy every day, but we never lose sight of what someone goes through emotionally when they decide to let go.  We are here to inform and to educate. At a certain point, it’s not about the jewelry on the desk but the person sitting opposite us.”   Mr. Singer is a founding member of the New York Jewelers Group, a 15-year-old organization made up of New York-based industry executives. Most recently Singer was elected into the 24 Karat Club of New York, an elite invite-only club serving the jewelry industry and limited to only 200 members. “Being a co-founder of CIRCA and involved since the very beginning, I have many wonderful stories,” Singer says. “It’s impossible to pick a favorite, because at the end of every client meeting after I have delivered a check, I always ask what they plan to do with their newfound money. Sometimes it’s to finance school tuition for a child or grandchild or to embark on a home renovation, or any number of things. It’s just wonderful to see that they’re happy that they could take a non-performing asset and convert it into something with meaning. My favorite use of funds? A vacation!”

Jeffrey Singer

Senior Vice President View bio