“I am a recovering volleyball player,” Jules Kim said.
The Bijules founder’s long-running fascination with sports is turning toward tennis as New York gears up for the U.S. Open. Kim has teamed with Dubai high jewelry house Kamyen on Topspin, a collection of diamond tennis bracelets and rivière necklaces that reworks one of jewelry’s most familiar — and aptly named — archetypes.
For Kim, the connection to athletics runs deep. She and her twin sister competed in Junior Olympics volleyball and were state champions throughout high school.
“The values you learn as an athlete become pillars of your identity,” Kim said. “The culture of sport has played a huge part in my development as a jewelry designer and creative.”
Sports has become a recurring language at Bijules, from working with athletes including tennis player Hailey Baptiste and basketball player Paige Bueckers to projects around basketball and baseball. During the New York Knicks’ 2026 championship run, Kim customized her Sport Pearls collection with New York nail salon Vanity Projects.
“I love the romance of sport and cherish the human resilience that is so rare to witness in other practices,” Kim said. “Sport is an integral part of how we move, look, win and lose.”
Topspin necklace from Bijules and Kamyen.
Julie Young-Ai Kim
With Topspin, Kim looked specifically at the movement of an athlete to rethink the traditional diamond line. “As an athlete, I was taught to control my body to drive the hardest impact: the spike,” she said. “When I looked at the low-to-high forehand that creates topspin in tennis, I immediately understood that motion.”
That swing appears across the jewelry as a path of hand-painted enamel embracing alternating Desert Diamonds. Made with Kamyen, the pieces are set in 18-karat gold and offered in Grass Green, U.S. Open Blue and Chalk White with fancy yellow diamonds. A pink iteration combines rose gold with wheat diamonds. “We were able to translate an athletic gesture into something incredibly precise and refined,” Kim said of the collection.
Each piece is finished with a co-branded tennis-racket clasp and a Bijules Tennis Sport Pearl pendant, its markings hand-painted by nail artists from Vanity Projects. The enamel swing can also be customized for teams, tournaments, athletes and other cultural moments.
Topspin from Bijules and Kamyen.
Courtesy Bjules
The collaboration comes as Kim gains wider recognition within fine jewelry. Earlier this year, she was a finalist for the David Yurman Gem Award for Emerging Artist, an experience the former athlete compared to trying out for a sports team.
“I choose to be independent, and that has real advantages in terms of creativity and mobility in the market,” Kim said of her brand, with sports now offering another avenue to expand her universe.
Topspin bracelets start at $12,000 and necklaces at $37,000, with bespoke and custom color commissions available.
“I’m excited to continue building a platform dedicated to the athletes, fans and visionaries who make sport so timeless and passionate,” she said.