Introducing the Infinity Collection
A refined expression of ONTOO’s signature style, the Infinity collection blends timeless elegance with sensual simplicity. Crafted in rose gold with elongated oval forms and gemstone accents, each piece is designed for enduring beauty and everyday comfort.
“Our Infinity collection reflects the heart of ONTOO—simplicity, longevity, and versatility,” says founder Martina. “It’s made to elevate both the everyday and the extraordinary.”
Available in a curated selection of rings, bracelets, necklaces, and hoops—customizable or ready to wear. Discover effortless luxury, wherever life takes you.
Unique design meets luxury jewellery
About ONTOO
Born from Martina Baeriswyl-Holzach’s lifelong passion for fine jewelry and fashion, ONTOO blends timeless design with modern versatility. Raised in Argentina with Swiss roots, Martina was inspired by her mother’s collection of antique jewelry and gemstones — a love that grew into a vision for everyday luxury.
Every ONTOO piece reflects her belief that true elegance is effortless, versatile, and lived. From refined jewelry to sophisticated fashion, the brand celebrates individuality and a lifestyle of comfort and timeless beauty.
Customise Your ONTOO Piece
Luxury that adapts to you.
At ONTOO, we believe that jewellery should be as unique and multifaceted as the women who wear it. That’s why every ONTOO piece is designed with versatility and personalisation in mind — made to be added onto, layered, adapted, and elevated over time.
FAQs
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All ONTOO pieces are crafted using 18k white, yellow, or rose gold. We work exclusively with real precious and semi-precious stones — including diamonds, topaz, amethyst, garnet, coral, and enamel — ensuring each piece reflects the highest standards of quality and craftsmanship.
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Our designs are created in our Zurich atelier by founder Martina Baeriswyl-Holzach. Each piece is then handcrafted in Istanbul by a trusted family-run workshop with generations of experience in fine jewellery. Final quality control takes place in Zurich before pieces are shipped to clients worldwide.
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We accept returns on non-customised items within 14 days of delivery, provided they are unworn and in original condition. Customised and bespoke pieces are non-returnable unless faulty. For more, visit our Returns & Exchanges page.
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Visits to our Zurich showroom are available by appointment. You’ll be able to see the collections up close and explore customisation options with personal guidance. Contact us here to book your visit.
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Absolutely. If you’d like to create a one-of-a-kind piece, we offer a bespoke design service. From engagement rings to meaningful gifts, we’ll work closely with you to bring your vision to life using the finest materials.
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Yes — customisation is at the heart of ONTOO. Most pieces can be personalised: choose your preferred gold tone, add or remove stones, and create modular combinations such as adding pendants or layering chains. Our team is happy to guide you through the options to create your perfect piece.
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We ship globally, directly from our headquarters in Zurich. Shipping fees and timelines vary based on destination and order value. For full details, please refer to our Shipping Policy.
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Customised or made-to-order pieces typically take 2–5weeks to complete. We will keep you informed throughout the process and provide estimated delivery dates upon confirmation.
Contact us.
0041 76 445 49 94
contact@ontoo.ch