Jewellery for every moment. Sharing the spirit of creation through collaborative designs with like-minded creators, designers and you.


To design thoughtful products that invites you on a journey of self-discovery and embrace your individuality through creativity.


Taking into consideration the longevity of a good product, quality materials are used so that it is sustainable and can be worn over and over again.

Learn More →

Designed in our studio in Singapore, crafted by hand in Thailand. Since 2020, we have started incorporating recycled silver in our production.

Each collection takes at least two months to design, prototype, test IRL — before we introduce them to the world.


Since young, Caroline Justine has always been a hands-on learner and explored different fields of interests in arts and science. Largely influenced by her grandmother who often makes things by hands, from traditional Indonesian cuisines, embroidery and pattern making, she also grew to love crafts through making and question how a product is made.

THREEONETWOFIVE first began as a diploma school project and eventually a full-fledged design studio upon graduation from LASALLE College of the Arts and is now specialising in jewellery1 and product design2.

We enjoy taking an organic and candid approach to design — sometimes inspirations come through materials firsthand, vivid memories, random shapes and odd combinations of everyday objects and encounters.


For more information, you may contact Caroline at 👋