
Case Line is a full-service jewelry consultancy founded by Kate Rubin. We help jewelry businesses develop products, launch categories and maximize existing assortments. We also advise private clients on jewelry repurposing, creation and acquisition.
Based in Ann Arbor, Kate has launched brick and mortar stores across the country and has extensive experience working with private clients from around the world.
She has worked with brands at all stages of growth, including Tiffany & Co., Anna Sheffield, Erstwhile Jewelry, Monica Rich Kosann, and Jade Trau. Prior to her professional work in the jewelry industry, Kate completed her master’s degrees in social work and public administration at Columbia University.
Kate is a lifelong jewelry lover and collector. Some of her earliest memories are digging through her grandmother’s collection of beaded necklaces and playing in her mother’s eclectic jewelry box.