Diamond Castle Jewelers offers fine jewelry and gift items, expert design, and on-site jewelry repair services in Novi, Michigan, and in our new location in Plymouth, Michigan. Jewelers since 1902, we are family owned and operated. Our goal is great customer experience — from a welcoming smile when you walk in the door, to friendly help from our expert staff. You will receive exceptional service every step of the way when you visit our showroom.

We are a full-service jewelry stores and we specialize in the sale of loose diamonds (most of which are GIA certified). We can help you get your perfect diamond of any size, shape, and quality. We are committed to providing you with high-quality craftsmanship, excellent value, and professional service.

Our highly qualified sales personnel and gemologists are always happy to help. If you have any questions, please stop in and see us at our Novi or Plymouth stores. showroom, or contact us online. Find out why we are the local jeweler of choice for your friends and neighbors.


Are you hoping to create a payment plan for the purchase of an engagement ring or gift? Financing options are available for those with approved credit! Apply for the Wells Fargo Jewelry Advantage Credit Card to see which options are available to you!

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Our inventory is constantly updated as new collections become available, and we have a wide selection designed to meet your unique style and taste, with options that suit most budgets and desires. We also do on-site jewelry repair, and can assist you with maintaining and resizing your gold and diamonds, rings, and other jewelry. Our expert sales personnel and gemologists are always ready to help you find that perfect piece — or if you have something custom in mind, we can help you design it. Visit us today, we look forward to becoming your go-to jewelers.

Our Showroom
Photo Tour

Our location at 39955 Grand River Avenue in Novi, Mich., is Oakland County’s premier jewelry store and we are excited that we have expanded to Plymouth, Michigan as well. Come visit our showroom and see why we have become the local jeweler of choice for your friends and neighbors.