Diamond Castle Jewelers of Novi, MI (now with a second location in Downtown Plymouth!) offers a wide range of designer jewelry. Many of our top brands are seen on the red carpet, as well as on your neighbors. Come in today and see why Diamond Castle Jewelers in Novi, MI and Plymouth, MI is Oakland County's premier jewelry store! Our family-owned and -operated business has been around for decades and our family have been jewelers since 1902, so when we say we know jewelry, especially engagement rings, we KNOW JEWELRY! We carry a wide range of diamond engagement rings to suit a wide range of tastes and budgets. From square cut diamond engagement rings to diamond engagement rings with baguettes, solitaires, wedding bands, and bridal sets, we can fit your budget and your style. Diamond Castle Jewelers of Novi, MI and Plymouth, MI is family-owned and operated, and is committed to providing high-quality jewelry, excellent value, and personal service that is unparalleled.