Monahan & Company Jewelers

Celebrating 205 Years ~ 1815 - 2020

We have and sell many different types of very FINE gems and jewelery that are not all yet on our website. Some exquisite pieces have been under specific articles and categories such as rings, ladies rings and such, plus our FAMOUS Claddagh rings and related items, as well as Cape Cod Bracelets and other related items. Soon to be displayed under “What’s New” will be more FINE jewelery. 

Please call our Jeweler and Owner, Mike Monahan at 772-559-3859 to discuss these pieces in further detail. As always, we thank you for your business!!! 

The Monahan Family 💍☘️

Monahan and Co., Jewelers

Latest News

Fine Jewelery
Below are some beautiful pictures of examples of more of our fine jewelery, including, 14K gold, white gold, platinum and numerous presious gems and m...

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Must settle estate 8.78 carat Diamond GIA certified - $120,000 - SOLD Platinum Sapphire and Diamond Necklace - $110,000 Diamond...

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Shop our online assortment of exclusive products


Cape Cod Bracelets, Necklaces, Earrings and Rings

Nantucket Basket Jewelry

14K Gold Nantucket BasketsThe Historic Nantucket Basket represents a proud tradition of American craftsmanship and simple artistic beauty. Nantucket Baskets were first woven of cane in the mid-1800's by island men serving aboard the navigational lightships anchored off the Massachusetts coast. Today the elegant baskets flourish in a thriving cottage industry and are recognized around the world for their desirability and collectability.

Nautical and Seashore Related Jewelry Items

Monahan & Co. designs and manufactures hundreds of styles of Nautical and Seashore related Jewelry Items

bullet Shell Bracelets
bullet Pendants
bullet Earrings
bullet Rings
bullet Charms


We also custom design Nautical pieces
14K, 18K Gold and Platinum

Specializing in nautical and seashore related Items

Pendant_CapeCod_sm.JPG (7662 bytes) Pendant CapeCod Lobster Pendent

Set up an appointment to come in today,

and see our dazzling selection.

Mens and Womens Claddagh Rings

Steeped in the tradition and legends of Galway, the ancient City of the Tribes, the Claddagh Ring has come to be renowned as a symbol of love, friendship and loyalty.

Claddagh Rings

Wear the ring on the right hand, the crown turned inwards and the world may see the heart is yet unoccupied. Worn on the right hand, the crown turned outwards, and it is clear that a love is being considered. But when it is worn on the left hand, the crown outwards, the two loves have become inseparable.

Cape Cod Wind Indicators
Mounted on the wall indoors, these precision instruments will fascinate family and friends.


Cape Cod Wind Speed Indicator

a spinning cup-wheel on your roof peak or mast uses free wind energy to instantly register every gust and lull on the richly decorative polished brass dial.

Wind Speed Indicator

Cape Cod Wind Direction Indicator

A small roof top windvane flashes the wind direction to you indoors, lighting compass pointson the elegant spun silver face of the brass dial.

Wind Direction Indicator

Cape Cod Marine Barometer - 6" brass 

Cape Codder Clock - 6" brass
In two models: with or without Atlantic coast TIDE INDICATOR

Cape Cod Marine Barometer
We Buy Gold

We Buy Gold, Platinum & Diamonds

Sell your old gold & platinum to Cape Cod's oldest
and only licensed Massachusetts gold buyer (License # 6-08)
Insured ~ Bonded Auctioneer ~ MA License #737




We will pay Top Dollar for: 

Antique and Estate Jewelry     Rolex Watches

Diamonds       Jewelry       Old Jewelry       Broken Jewelry

Gemstones      Old Gold    Scrap Gold         Dental Gold     

Platinum         Sterling       School Rings      Fine Watches    

Sterling Flatware and Serving Pieces

Gold & Silver Coins

We also accept TRADE-INS


Would you like to know if an item is Gold, Silver, Platinum or a real Diamond? 

We Can Tell You!  Free of Charge!

Do you have old or broken jewelry that you would like to sell?

We buy old gold and jewelry in any condition for CASH.  We also buy Diamonds and other items such as Estate and Antique Jewelry, Platinum, Sterling, Coins, Rolex and Fine Watches.  Our customers tell us that we pay more than our competitors!

Do you have an estate to liquidate?

We purchase single items or complete estates.  Please make an appointment to visit one of our stores or our buyer will visit you at home, your vault, or your attorneys office to review the contents of an estate.  We have many buyers seeking older jewelry, coins and collectibles who quite often will pay much more than you would normally expect to receive when liquidating an estate.

Do you have old or broken jewelry that you would like to trade in?

We offer you the option of converting your old jewelry into new jewelry by trading it in for a store credit.  You can receive a store credit, based on the value of your gold, silver, platinum and gemstones.  The store credit can be redeemed for any merchandise, gift certificates or services that Diamond Jewelers offers at anytime.   You can redeem the store credit immediately or save it for future use.  

Did you know that we can also remodel your old or unwanted jewelry?

Our experienced jewelers and jewelry designers can help you create a unique piece of jewelry from the gemstones and gold, silver or platinum jewelry you have.  The cost of remodeling your old jewelry is significantly lower than the purchase price of similar new items.