A single feather. So simple. Light as the wind. I’m sure we all have found one in the yard or on a trail or sidewalk. With its colors and geometry, it’s like spotting a ruby or diamond.

Tiffany & Co. platinum and diamond feather earrings, $100,000, 1-800-843-3269. Van Cleef & Arpels 18k white gold and mother of pearl “Oriental” earrings from the “Bals de Legende ...

“It’s very much like haute couture,” says Reynolds, who adds that even after the necklace’s sale, jewelers will adjust it to ensure the feathers lie just so on the wearer’s collarbone.