• Image of 18K. Petoskey Stone and Diamond Earrings // Sarah McGuire

These beautiful and unusual earrings are carved from Petoskey Stone, which is a fossilized coral found in or near Petoskey, Michigan. These fossils were formed from Paleozoic coral reefs in Lake Michigan as a result of glaciation, and are noted for their ornate, lace-like beauty. The large warm grey oval drops hang from rich 18 karat yellow gold jump rings and ear wires, and each one is adorned with a tiny bezel-set rose cut diamond.

Chicago-based designer Sarah McGuire spent her formative years in New England, foraging for treasures on the beaches of coastal Connecticut. This connection to the natural world continues to influence her designs, which are simple, organic and dainty. Each piece is hand crafted by McGuire and her team, using recycled precious metals and ethically sourced gemstones. McGuire strives to create timeless, unfussy and delicate pieces that can be worn and passed down through the ages.