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  • Jewelry Repair at Market Square Jewelers


    With six full time jewelers and over 60 combined years of experience at the jeweler's bench, our team of metalsmiths can meet all your jewelry repair needs.  We specialize in antique jewelry restoration and we work in all precious metals: platinum, gold, silver and palladium.  

    Our workshop, established in our Dover New Hampshire location, services all of our brick-and-mortar stores: PortsmouthNewburyport, CambridgeDover, Manchester, and Portland.

    Here's a behind the scenes peek of our jewelers at work:


    Whether you need your rings sized up or down, prongs re-tipped on your engagement ring, a diamond replaced in a wedding band, a ring re-shanked, or any other general jewelry needs, our experienced metal smiths are here to service you.

    Polishing, Sizing Jewelry Repair New HampshireIn this shot, one of our jewelers is finishing sizing a ring by smoothing the solder joint so the seam is invisible.  With few exceptions, we always "cut and add" material to rings when they are sized.  This ensures that the shank (or base of the ring) is not thinned out after the ring is re-sized.

    Jeweler's Repair Tools New HampshireA selection of disks for cutting and buffing, as well as some burrs for stone setting.  All the tools of the trade.  

    Jewelry Repair Portsmouth New HampshireOur jeweler is working on a solder seam on this antique band.  Using his torch, he is able to quickly flow solder into a seam in the ring to solder it in place.  If you've ever had the pleasure to watch a jeweler work, this part seems like magic!


    Antique jewelry is what we do!  Bring in your heirloom pieces for our expertise working with delicate filigree, antique diamonds, enamel, rare gemstones, and other specialty items.  Our metalsmiths are experienced in working with fine gemstones, and antique pieces that need specialty care.  

    Antique and Vintage Jewelry RepairOn the bench for the day is an Art Deco synthetic sapphire ring, a modern sterling silver and tourmaline ring, a garnet ring from the Elizabeth Henry Collection, and a vintage ruby halo ring.  Our customers keep us busy! 

    Because we work with antiques, we are able to provide parts and components original to the time period of your jewelry.  Have a cigar band that needs sizing?  We will size it using rose gold from a similar time period in order to match the color and patina of the metal.  Have an antique diamond ring that needs a specialty rose cut stone?  We have the rose cut, mine cut, or single cut diamond that will match the period of your jewelry.

    Antique Diamond ReplacementWhen replacing a diamond in your jewelry, we are able to match the cut, the color, and the clarity of the diamond so your jewelry looks original.

    Costume Jewelry Repair Dover New HampshireHere we are matching a white rhinestone to a large Art Deco brooch.  It's a tedious job, but finding the perfect foil-back rhinestone makes all the difference! 


    In 2014 we purchased our first laser soldering machine.  Now an integral part of what we do, the laser machine allows us to repair jewelry without using a torch or heat.  This means that we can isolate problem areas in any piece of jewelry to work on that particular trouble area.  This has transformed the way our jewelers repair pieces, and we are excited to offer this technology to our customers.  

    Laser Soldering Machine Jewelry Repair One of our talented jewelers working at the laser soldering machine.  The laser has transformed the way in which we can work on your jewelry repairs.


    Do you have a mounting with a scratched, damaged or missing gemstone?  We can replace these gemstones with something you will love!   In addition to gemstone replacement, we also offer gem cutting, setting, and polishing.  If you have a mounting that needs a new zircon, black onyx intaglio, a rare sphene or a simple garnet, we would love the opportunity to help recreate your piece into something you'll love.  

    Loose Gemstones and Gems at Market Square JewelersHere's a small selection of colored gemstones that are ready to be sorted into our gem safe!  I see blue topaztanzaniteamethystzirconemerald and a few aquamarines.  I could sift through these beauties all day!

    Marcasite Mountings ready for jewelry repair These marcasite frames are ready to find centerpieces to make them complete!  We not only use our repair materials for our customers, but we are always using them to restore our pieces that we sell in our four retail stores!


    We offer both traditional bead restringing and knotted restringing on silk and nylon. We also have an array of clasps and findings, both modern and antique.  

    Bead Restringing Pearl RepairA beautiful hand-knotted strand of antique pearls just coming out of our repair shop and back to the owner.  

    Pearl Matching and Replacement Jewelry RepairWe also do pearl replacement and we have a variety of sizes, shapes, colors and price points available.  Here's a small sampling of pearls waiting to be sorted by millimeter size. 


    Our watch repair staff works on both your contemporary watches and antique and estate wrist and pocket watches. We are fortunate to have a staff that is able to get your pieces in working order for a reasonable price.

    • Battery, Band and Pin Replacements
    • Cleanings, Oilings and Adjustments
    • Crystal, Stem and Hand Replacements
    • Movement Conversions
    • Hinge Repair

    Pocket Watch Repair New Hampshire


    As collectors of costume jewelry parts and components, we are able to replace missing or broken parts for our customers. Whether it is a clasp, a bead, or a rhinestone, we will do our best to match and repair your pieces.  Our laser soldering machine also allows us to solder on nontraditional metals that are often used in costume jewelry.  

    Blue Rhinestones for Jewelry RepairHere's a selection of blue and teal rhinestone foil backs that we use for costume jewelry repair.  Our online customers do not see too much of our costume jewelry online, but stop by one of our stores in New Hampshire, Maine or Massachusetts, and you will realize how much we love the fun glittery pieces!


    Whether your sapphire is scratched or you have an uncut gemstone that needs to be fashioned, we have a team that can take care of your needs.

    Preforms of American Agate and JasperA sampling of preforms our lapidarist is marking out for cabochons.  These are samples of American agates and jaspers from all over the country.  The tray of water is used to wet the stone to see the final pattern for when the stone is polished.  


    We offer exquisite hand engraving services for our customers.  Applications include period-specific monograms and lettering, portraiture, deeply carved family crests, custom/customer designed motifs, and floral band patterning.  

    Hand Engraving MassachusettsThis spoon-inspired bracelet is ready for its monogram!  After it is finish-polished by our metal smiths, it will be sent to our hand engraver, who continues to wow us with his expertise.  


    Have an idea? Bring in a photo or drawing of something you love and we will see what our jewelers can come up with. Love a mounting that we have but not the stone? We can help you find the perfect one! Some of the projects that we have taken on in the past include:

    • High End Custom Engagement Rings
    • Mother’s Rings
    • Bridesmaids or Groomsmen Gifts
    • Custom Castings

    Read this story from our customer, Sharon, who redesigned her engagement ring with us! 

    Please give us a call at any of our brick and mortar locations in Portsmouth, NHNewburyport, MADover, NH, Portland, Maine, and Cambridge, MA.