Partners in life and craft, Adele Piatti and Roberto Ortenzi founded Sideræ as an independent voice in contemporary fine jewelry. In their studio on Lake Maggiore, they fuse instinct and goldsmithing through Liquid Setting—pouring molten gold directly over sapphires and rubies to bring to life pieces of raw, organic elegance. Celebrating the beauty of the unexpected, each miniature sculpture is one of a kind, made for anyone wandering happily off the beaten track.
EXPANDING our universe
Born in Italy, where creativity and craftsmanship intertwine with a rich cultural history, Adele and Roberto grew up among the mountains and lakes north of Milan. Adele collected minerals as a child and Roberto fell for photography: both learned early to find magic in the tiniest detail.
Milan became their second home: Adele studied there, and both found in the city the art, the music and the long nights that fed an appetite the metropolis alone could not satisfy.
Driven by a restless curiosity for what lay beyond their horizon, they looked far afield: encounters, journeys and quiet stretches in the wilderness, from the rainforests of Costa Rica to the deserts of Namibia, became raw material taken home, waiting to be cast into gold. Italian heritage and distant landscapes have been shaping each other ever since, into a world of values that belongs to no school.

EMBRACING the unexpected
After years in corporate management, they walked away carrying a taste for precision and an unruly craving for wonder.
Their encounter with jewelry was not planned, yet immediate. Standing before the ancient Etruscan goldwork preserved in Italy’s archaeological museums, they recognized an art made to be lived: a matter of true intimacy, worn on the skin, touched and carried through a lifetime.
Largely self-taught, they approached the craft as an intuitive and tactile exploration. The path was anything but linear. Guided by stubborn curiosity and plenty of trial and error, they built their method from the ground up, maintaining full autonomy over their production to preserve their creative freedom. In doing so, they learned to listen to the material and trust their hands.
Born from this search, Liquid Setting is the beating heart of their practice—a technique where molten gold envelops the gemstones, allowing them to rise like shimmering islands in a golden sea.
"Our work, much like a jazz improvisation, is a chaotic yet harmonious conversation between technical precision, intuition and free interaction with precious materials."
GAZING at the stars
For Adele and Roberto, every creation is an act of discovery.
Slick, predictable perfection was never the point. Each piece bears the physical marks of its own making, unrepeatable even to the hands that cast it: a sincere jewel, whose deliberate imperfections echo the non-linear course of human emotions.
The name holds their compass. Sideræ is Latin for the stars, and the ancient root of desire: de-sidera, the longing that awakens when the stars feel far away. For them, desire is not an absence but a vital force: a positive tension that pushes us forward to imagine new realities.
Born from this constant evolution, every Sideræ jewel is an invitation to embrace the unforeseen beauty of our own journeys and to lift the gaze to the stars, to the unknown worlds within and beyond ourselves.



