Polly Wales and Castro Smith unveil cast-and-engraved capsule collection

Polly Wales and Castro Smith turned a cross-Atlantic partnership into a compact study in contrast: 16 one-of-a-kind fine-jewelry pieces that married Wales’s molten, cast surfaces with Smith’s precise engraving. The collection had a digital preview on June 4, a Los Angeles pop-up and launch on June 4-5, and went on sale Friday, June 5 at 6 p.m. GMT, adding a timed release to jewelry that already felt singular by design.

What makes the capsule feel fresh is not restraint for its own sake, but the way each maker’s language heightens the other’s. Wales works from cast irregularity, Smith from engraved symbolism, and together they made minimalism look less like blankness than intention. Negative space became part of the composition, not an absence to be filled, while the surfaces held the kind of texture that invites a second look. In a market crowded with polished sameness, that tension between molten softness and carved detail gave the collection its charge.

Wales’s own history explains why the collaboration lands with such confidence. She developed her Cast-not-Set technique while earning her master’s degree at the Royal College of Art, building pieces by throwing diamonds and sapphires into molten gold so each result emerges slightly different from the last. That method has become central to her identity, and the capsule extended it into Smith’s vocabulary of engraved marks and narrative motifs, making the jewelry feel less like a collaboration of styles than a conversation between two distinct craft traditions.

One standout was an 18k recycled yellow-gold jumbo signet ring engraved by Smith, set with a scorpion motif and rainbow sapphire blossoms. Elsewhere, the collection unfolded through caves, webs, wings, ants, skulls, snakes, flowers and hidden relics, imagery that gave the pieces their quiet sense of myth. The motifs never tipped into ornament for ornament’s sake. They read as private emblems, the kind of details that reward close viewing and make a small object feel personally claimed.

The response was swift. Eight of the 16 pieces sold within the first 20 minutes of the online debut, a pace that suggests collectors understood exactly what the collaboration offered: not a louder version of luxury, but a more intimate one. By fusing cast metal, hand engraving and imagery that feels both elemental and autobiographical, Wales and Smith made minimalist jewelry feel less pared back than fully composed.