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  • "Luxury today is about authenticity and craftsmanship—not logos. ONTOO captures that perfectly."

    —Corinne, Zurich, Customer

  • "My ONTOO ring has become part of my everyday signature."

    — Pia, Madrid, Customer

  • "I am someone who's constantly travelling for work, I wanted jewellery that I can use easily from meetings to dinner. With my ONTOO Necklaces and earrings I can exactly do that."

    — Christina, Meggen, Customer

  • "I don’t think jewellery should stay in a safe. ONTOO created something precious enough to treasure and comfortable at the same time to wear every day."

    - Ute, Munich, Customer

  • "I chose a personalized necklace to celebrate becoming a mother. It's timeless, meaningful, and something I hope to pass on one day."

    - Victoria , Geneva, Customer

  • "I've owned fine jewellery for years, but my ONTOO necklace is the piece I wear every day. It's understated, elegant, and feels uniquely mine."

    - Sophie, Paris, Costmer

  • "I love my ONTOO flower rings, I own them in different stones and gold colors. The craftsmanship is exceptional. and I receive compliments every time I wear them."

    - Laura, Lugano, Costumer

Diamonds Addiction

Zip-Flower Diamond Necklace
from CHF 1,450.00

The Medium Zip-Flower Diamond Necklace in white gold redefines modern elegance with its sleek, delicate zip-flower motif adorned in shimmering pavé diamonds. Designed with an adjustable length, this versatile piece effortlessly adds a touch of refined luxury and subtle sparkle to any ensemble.

This piece is fully customizable — choose your preferred gold finish, gemstone, or add detachable elements to make it uniquely yours.

Click here to CUSTOMIZE!
Connect with our team and make your jewellery dreams come true!

Medium Gold Flower Diamond Earrings
from CHF 10,190.00

Medium Gold Flower Diamond Pavé Earrings. Featuring a versatile design with both clip-on and foldable stud options, these medium-sized gold flower earrings are adorned with sparkling diamond pavé detailing—perfect for comfort and elegance in one.

This piece is fully customizable — choose your preferred gold finish, gemstone, or add detachable elements to make it uniquely yours.

Click here to CUSTOMIZE!
Connect with our team and make your jewellery dreams come true!

Mini Flower Diamond Necklace
from CHF 2,990.00

Gold Mini Flower Diamond Pavé Necklace. A stunning and delicate piece that adds a touch of everyday luxury and elegance to any occasion. Perfectly designed to complement both casual and special moments.

This piece is fully customizable — choose your preferred gold finish, gemstone, or add detachable elements to make it uniquely yours.

Click here to CUSTOMIZE!
Connect with our team and make your jewellery dreams come true!

ON+TOO

The name says it all.

"ON" represents the jewellery you already own. "TOO" is the next piece you choose to add.

ONTOO was created with the belief that a jewellery collection should evolve with you—growing over time through meaningful pieces chosen to celebrate life's moments.

Because the finest collections are never finished. They are simply added to.

Martina Baeriswyl Holzach, the founder of ONTOO, brings Swiss precision and contemporary elegance to the world of luxury jewelry. From Zurich, she crafts timeless pieces that celebrate unique design and exceptional craftsmanship.

The Founder

Meet Martina Baeriswyl, the founder and creative force behind ONTOO.

For Martina Baeriswyl, jewellery has always been more than an accessory. Inspired by her Swiss heritage, her mother's treasured collection, and years working with luxury brands, she founded ONTOO to create timeless pieces designed to become part of everyday life.

Contact us.

0041 76 445 49 94
contact@ontoo.ch