Business Details
50+ Years
experience
Your Trusted Family-Owned Jewelry Store in Newport, NH
Since 1948, MJ Harrington has served the Lake Sunapee Region and Western New Hampshire as a family-owned business committed to exceptional craftsmanship and personalized service. Established by Michael J. Harrington, our legacy spans generations, with David Lantz now leading as a Certified Gemologist Appraiser and Certified Bench Jewelerone of fewer than 10 professionals nationwide to hold both credentials. Our team of skilled artisans, including JA Certified Master Goldsmith Tom Armstrong, provides expert appraisals, custom design, repairs, and engraving, all backed by a dedication to community and education. We prioritize transparency, offering complimentary repair estimates and ring inspections while maintaining rigorous industry standards through affiliations like the American Gem Society.With over 100 combined years of experience in our on-site workshop, we ensure every piece of jewelry receives meticulous care, whether preserving heirlooms or creating new treasures. Our philosophy centers on building lasting relationships through trust, treating every customer with the same respect and attention to detail, regardless of their background. This commitment extends to our community involvement, supporting local arts, historic preservation, and volunteer initiatives that strengthen Newports unique character.
Services
Appraisals
Custom Design
Engraving
Repairs
Estate Jewelry
Details
- Year established: 1948
Highlights and features
- We offer 75+ years of family-owned jewelry expertise in Newport, NH.
- Our team includes the only AGS Certified Gemologist Appraiser/JA Certified Bench Jeweler in the U.S.
- On-site goldsmiths provide repairs with over 100 combined years of experience.
- We prioritize community through volunteer support and local event participation.
- Free engraving and first-time ring sizing demonstrate our commitment to value.
Associations and certifications
- American Gem Society (AGS)
- Jewelers of America (JA)
What people say
Exceptional customer service
Unique antique selection
Skilled customization
Trustworthy expertise
Community involvement
Services
Insurance Appraisals
We provide detailed insurance appraisals to protect your valuable jewelry. Our certified gemologist determines replacement values based on current market prices and craftsmanship standards. This service ensures proper coverage in case of loss or damage, with documentation adhering to industry guidelines.
Custom Design
Transform your vision into unique jewelry through our custom design service. Our master goldsmiths collaborate with clients to create one-of-a-kind pieces, utilizing over 100 combined years of experience in crafting intricate designs that reflect personal stories and style.
Jewelry Repairs
Our on-site repair specialists handle all jewelry restoration needs, from simple resizing to complex stone setting. With certified technicians and advanced equipment, we ensure your treasured pieces maintain their beauty and structural integrity through expert care.
Engraving
Add meaningful touches to jewelry through our engraving service. We offer traditional and hand-engraving options to commemorate special occasions, with free engraving available on all purchased rings and watches for personalized, lasting gifts.
Estate Jewelry
We curate and appraise estate jewelry collections, offering timeless antique and modern pieces. Our experts authenticate, evaluate, and help clients select heirloom-quality items, ensuring proper valuation and preservation of historical craftsmanship for discerning collectors.
People
David Lantz
Owner
David Lantz leads MJ Harrington as the only professional in the U.S. holding both AGS Certified Gemologist Appraiser and JA Certified Bench Jeweler credentials. With decades of experience, he combines technical expertise with family tradition to maintain the store's legacy of excellence.
Tom Armstrong
Master Goldsmith
Tom Armstrong, a JA Certified Master Goldsmith among only 139 nationwide, brings 40 years of expertise to our on-site workshop. His precision craftsmanship ensures every repair and custom creation meets exacting standards, preserving jewelry's beauty for generations.
Kenney Bergeron
Certified Bench Jeweler
Kenney Bergeron, a Jewelers of America Certified Bench Jeweler Technician, contributes over 20 years of specialized repair experience. His meticulous attention to detail and technical proficiency ensure high-quality restoration of even the most delicate jewelry pieces.
Questions
What services does MJ Harrington Jewelers offer?
We provide appraisals, custom design, jewelry repairs, engraving, and estate jewelry sales. Our on-site goldsmiths handle all aspects of jewelry care and creation.
Do you offer jewelry repair services?
Yes, our master goldsmiths perform repairs including resizing, stone setting, and restoration. Most repairs are completed in-house with complimentary estimates.
Is MJ Harrington involved in the local community?
We actively support Newport's arts, historic preservation, and volunteer initiatives, encouraging staff participation in local charitable efforts.
What makes your custom design service unique?
Our master goldsmiths collaborate directly with clients, transforming personal visions into bespoke pieces using traditional techniques and modern expertise.
Reviews (5)
Heather Page
Feb 07, 2022
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Heather was so nice and friendly! My rings were brought in to be resized. She was so pleasant and the rings were ready early! Thank you!
Lynn M.
Dec 27, 2021
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We went in, at 10 am on Christmas Eve to see if, by any chance, they could custom add a stone to a ring my son had gotten for his girlfriend. David Ernster did it on the spot and my son was thrilled. They also, repaired a necklace for us at the same time. We were out in less than 45 minutes, having spent less than a $100 for all they did. The service they provide is beyond exceptional and the quality of the work they do and jewelry they sell is superb. If you're not nearby, they are worth the drive!
Karin M.
Dec 21, 2021
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My husband had a ring made for me to compliment my engagement ring. I was disappointed in how it looked but the jeweler who crafted it (not a Harrington's employee) said he could not make it look less chunky. I put the ring away and chalked it up as a loss. Recently I took my engagement ring to Harrington's to have prongs inspected. I took the ring I had not worn to ask about re-doing it so it would actually compliment my engagement ring. Dave Lantz listened, asked questions, and while I thought we would have to start from scratch, Dave said he thought they could "fix" my ring. He and his talented jeweler Dave came up with a redesign that is a dream. It cost 1/2 as much as a brand new creation would have cost and I am thrilled and grateful for their work.
Brianne Bemis
Aug 23, 2021
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My family has been doing business with MJ Harrington's for four generations. We have all purchased existing jewelry they had and have had custom pieces made. My husband and I were stationed overseas. I needed repairs done. MJ Harrington's repaired my jewelry and safely returned it to me in Germany. I cannot say enough about the time they take with all of us, the incredible customer service, and high-end treatment. David and his staff will always take the time for you when you visit the store.
They have been wonderful getting appraisals done for us. They are always willing to check, clean and repair my jewelry whenever I walk in the door. My son in law designed my daughters engagement ring with David. David was so easy for him to work with. There was NO pressure to purchase more than he could afford. MJ Harrington's stands behind every purchase you make from them. They have bent over backwards for us. This is the ONLY jeweler that we will do business with. You cannot beat the customer service, integrity and honesty. Try them, I promise you'll love them! They are dog friendly, too!
They have been wonderful getting appraisals done for us. They are always willing to check, clean and repair my jewelry whenever I walk in the door. My son in law designed my daughters engagement ring with David. David was so easy for him to work with. There was NO pressure to purchase more than he could afford. MJ Harrington's stands behind every purchase you make from them. They have bent over backwards for us. This is the ONLY jeweler that we will do business with. You cannot beat the customer service, integrity and honesty. Try them, I promise you'll love them! They are dog friendly, too!
Frank Lawrence
Aug 12, 2021
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I would avoid these incompetent jewelers, we had taken are ring for repair. The ring was 18k! The jeweler deeply and very poorly gouged 14k into the the ring. I had the ring tested again by a competent jeweler and the ring is absolutely 18k gold, just as the certificate Authenticity reads, what a disappointing experience with M J Harrington. I would not take any jewelry of value or anything you care about to these careless jewelers. I can't believe how long we had to wait for are ring and the terrible job they did
