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Jewelry in Saint Clair, MI,
(810) 329-6866

About Us

Coughlin Jewelers began as a small, family-owned company in 1992 under the name American Diamond Importers. We quickly became known for our superb yet affordable jewelry, and soon business was booming! In 2010, we were delighted to give our thriving business its new name - Coughlin Jewelers. After almost 30 years, we are still proudly serving the Blue Water Area with our main location in St. Clair on South Riverside Ave, and our new sister store in Marine City inside the Inn on Water Street.

We carry an incredible selection of engagement rings, wedding ring sets, watches, necklaces, pendants, and bracelets from the most popular designers all over the world. Venture into our store, and you’ll find the newest and finest pieces from designers such as Mark Schneider, Michou, and Frédéric Duclos. Not to mention our extensive array of handbags, satchels, and totes by the world-famous California brand Brighton Collectibles. We are so excited for you to visit either (or both!) of our locations and experience the beauty and elegance of everything we have to offer.

Besides our incredible inventory, we also offer custom jewelry. We have countless design catalogs from which you can choose a style, or if you have an idea for a piece, our expert on-site jewelers can make it. In addition to custom pieces, our jewelers will professionally clean and repair your jewelry. Did you lose a side stone? Break a prong? Never fear! Our experts can restore your favorite piece of jewelry, clean, and polish it up so it’s as good as new.

At Coughlin Jewelers, we want you to sparkle and shine in our elegant and sophisticated jewelry. You can rest assured that our friendly and knowledgeable staff will help you find exactly the piece you’re looking for without the pressure and worry of how much it costs. We have beautiful designer jewelry for any budget and every occasion. You might not have a million bucks, but you can feel like a million bucks!

At Coughlin Jewelers, we have the perfect jewelry for your special someone or to complement any special occasion. In fact, we are renowned for our engagement and wedding sets, and even gifts for your bridal party. But we don’t stop there!

Our services include:

  • Appraisals: Our knowledgeable jewelry professionals can provide precise appraisals on any piece that you bring into our store. It’s always helpful to know the value of your jewelry, especially if you plan on trading it in or having it insured.
  • Cleaning: In order to keep your jewelry shining like the stars, we recommend periodic professional cleaning. Cleaning jewelry is a delicate process, which if done improperly, can result in damage to your treasured piece. Our experienced staff knows exactly what to do to keep your jewelry sparkling.
  • Insurance: Coughlin Jewelers is proud to partner with Jewelers Mutual to offer premium insurance as an option with your purchase. If you don’t want to add it to your homeowner’s policy or private insurance, Jewelers Mutual has you covered.
  • Repairs: Accidents happen, but when they happen to your most treasured jewelry, it can be heartbreaking. But don’t worry! We offer repair services to restore your jewelry to its original brilliance. Bring in any damaged piece that you purchased from Coughlin, and we will go over the cost of cleaning, repairs, and sometimes even replacements in certain instances.
  • Payment plans: That’s right! You don’t have to downgrade just because of the price. You can purchase your favorite item with a payment plan that’s right for you. We will work with your budget to keep you looking red-carpet ready!
  • Ring sizing: The proper fit is essential for keeping your rings safe and flawless. We will size your ring for the perfect fit.
  • Diamond certification: Ever wonder if your diamond is real? You won’t with us. Coughlin Jewelers only purchases certified diamonds, so you can rest assured knowing that you are investing in a legitimate, 100% real, quality diamond.
  • Warranties: Jewelry isn’t just an accessory. It’s an investment. Our jewelry is backed by extensive manufacturer warranties in order to give you peace of mind by knowing that your jewelry can be an heirloom for years to come.
  • Shipping: Coughlin Jewelers doesn’t just serve the Blue Water Area. Our stellar reputation has allowed us to build a customer base throughout the United States. Check out our website to find your perfect piece, and we will ship it directly to your home. It’s that easy!

At Coughlin Jewelers, our goal is to keep you coming back with affordable prices and payment plans, superb warranties, and of course, our fabulous jewelry. Your satisfaction means everything to us!



Frequently Asked Questions about Jewelry

Which of the following services do you offer?

Appraisal, Cleaning, Diamond Certification, Insurance, Payment Plans, Ring Sizing, Shipping, Stone Upgrades, Warranties

What kind of jewelry do you offer?

Antique Engagement Rings, Antique Wedding Bands, Custom Accessories, Custom Engagement Rings, Custom Wedding Bands, Designer Accessories, Designer Engagement Rings, Designer Wedding Bands, Fair Trade, Loose Diamonds, Ring Setting

What is your average turnaround time for an engagement ring?

3-4 weeks



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