Midwinter Co.

Midwinter Co. is a jewelry studio that makes custom engagement rings, wedding bands and other jewelry, built around unusual stones such as sapphires, salt and pepper diamonds, and lab grown and moissanite options. Its ready-to-ship rings are pieces already made up in 14k gold, and custom orders can be built by choosing a stone and a setting online.

Customers can also arrange consultations by e-mail or phone rather than only shopping online. The company says it offers a built-in warranty with optional care plans, and it notes that its metals are mostly recycled and its materials ethically sourced. Midwinter Co. is based at Trolley Square in Wilmington, Delaware.