WELCOME TO ONTOO JEWELLERY

ONTOO Jewellery is a luxury brand designed in Zurich by Martina Baeriswyl-Holzach.

With decades of experience in international marketing and luxury branding, Martina founded ONTOO to unite her passion for fine jewellery with timeless design. After a distinguished career across Europe and South America, she returned to Zurich to create pieces that reflect craftsmanship, elegance, and individuality—each one a modern expression of enduring beauty.