Robert Guertin opened his jewelry store in 1972, and since then has grown. Robert E.Guertin Jewelers are now located in Merchant Square in Sandwich. The store may have changed its location and selection over the years, but they have retained their high-quality jewelry and outstanding customer service.

The store has a boutique atmosphere, featuring not only hand-crafted and estate jewelry, but also artisan made pieces, Tolani scarves, and hand-blown glass by local Cape Cod artist. Whether you are into estate pieces or contemporary pieces, they boast a gallery of platinum, 14kt. and 18kt. gold, diamonds and other precious stone.

We have a large selection of silver jewelry including the ever popular Cape Cod Bracelet and Ed Levin to name a few. We also have a full gallery of estate jewelry, spanning across the decades. The prices on the ever changing selection of estate jewelry are incredible low, essentially wholesale. The diamond cuff bracelet is Bobs creation is made of 14kt. yellow gold, white gold or two toned.

One of the things that are unique about the store is that Bob or his wife, Joanne are always at the shop. Combined, both of them have 60 years experience in the jewelry industry, and no matter how busy they are, will always have time to address the needs of a customer and carry on the stores tradition of quality craftsmanship.


Robert E Guertin Jeweler will buy gold, sterling silver and platinum in any condition. Even broken or outdated jewelry you have lying around can be worth a shocking amount! We have been proven to give 30% more of what you would receive at a gold party. We deal directly with the refinery and have been buying gold for 30+ years.