Along Boston’s posh Newbury Street, Cartier’s four-story boutique houses a striking new installation. A vibrantly colored mobile of stone discs and spheres hangs within the space, on view through May 17. Standing eight feet tall, the kaleidoscopic work is composed of residual stone fragments left behind during Cartier’s jewelry-making process, brought together by artist Beatriz Milhazes.

True to its name, the Aquarium mobile evokes a dazzling array of marine life—corals, drifting forms, and darting fish in vivid color. On closer inspection, the glistening elements reveal themselves as diamonds, emeralds, Akoya pearls, and opals, each cut into smooth, fluid shapes. The work encapsulates the hallmarks of Milhazes’s practice, drawing on visual elements rooted in her Brazilian culture. Arabesque motifs and kaleidoscopic collages come to life in Aquarium, a piece developed over two years in collaboration with Cartier’s artisans.

Presented as part of Cartier’s Artist Meets Artisan program, Milhazes’s Aquarium continues the maison’s legacy of reimagining materials left behind during the high jewelry creation process. Since its launch in 2009, the initiative has brought together artists with Cartier’s designers and artisans, inviting creatives to transform unused stone fragments into singular works of art crafted by the house. Past contributors include Alessandro Mendini, David Lynch, Takeshi Kitano, and Jean-Michel Alberola.