Three-Diamond U-Ring

Linn. Fine Jewelry is a Brooklyn-based fine jewelry brand founded by designer Masumi Hayashi, who handcrafts each piece with an unwavering dedication to form, texture, and contrast. Raised in Sapporo, Japan, Masumi began her career as an accessory designer in Tokyo’s fashion world before relocating to New York in 2001. Masumi’s designs are guided by a deep fascination with contrast—the interplay between deliberate, geometric structures and the spontaneous, organic forms found in nature. Her work often features sharp silhouettes that cradle softly irregular gemstones, or precise cuts enveloped in richly textured gold. Each piece is a study in balance: controlled yet expressive, architectural yet fluid.