Our History
Koser Jewelers is Lancaster County’s leading family-owned and operated source for loose diamonds, luxury jewelry, and Swiss timepieces. For over 70 years, we’ve dedicated ourselves to bringing world-class jewelry and experiences to our community, and we’re excited to deliver that same experience to you. Welcome to our community!
1952: The Foundation
Koser Jewelers was founded by Earl and Yvonne Koser in Mount Joy over 70 years ago. Founded at 64 E Main St, Mount Joy, Koser Jewelers was first known for its excellent watch repair and a lovely assortment of fine jewelry.
1989: A New Era
Randy and Betsy Wolgemuth purchased Koser Jewelers from the Koser family and sought to build on the legacy of customer service with new and innovative jewelry products. Living with their four children in the apartment above the showroom, they quickly expanded Koser Jeweler’s reputation for spectacular diamonds and gemstones.
2008: Putting a Flag in the Ground
As part of Koser Jeweler's commitment to delivering world-class jewelry experiences to the Lancaster community, we built our flagship store at 811 E Main St. Mount Joy. With over 40,000 square feet, you can expect to be delighted and dazzled by some of the finest diamonds, gemstones, and Swiss Timepieces when you enter our doors!
2024: A New Generation
Tom Curran and his wife, Tierney Wolgemuth, took ownership and began to lead store operations. They welcomed their first son (and potential next generation!) in July 2023.
