About Us
Born From Love
KOSINER began with George — a father who wished for earrings his daughter could wear without worry. When a pair once caused irritation, he realized beauty should never demand tolerance, only trust. He envisioned jewelry safe enough to wear all day, and so comfortable that you forget it’s even there.
Where We Come From
Born in Hong Kong and now operating from Irvine, California, we are a team that loves jewelry deeply. For us, jewelry is more than an ornament; it’s about what it touches, who it protects, and how it becomes a seamless part of your life.
KOSINER exists because one father wished to create pieces that his daughter could wear freely, comfortably, and without fear. Today, we extend that same care and protection to you.
Made for Comfortable Wear
Our jewelry is crafted from premium, tested titanium, silver, and gold. Each material is verified by Intertek through random-sample testing to meet California Proposition 65 standards for safe, everyday skin contact.
- Hypoallergenic: Completely free from lead, nickel, chromium, and other skin-irritating metals.
- Ultra-Lightweight: Gently polished and skin-kind, designed to be something you forget you’re wearing.
Sustainability With Care
We believe comfort isn’t just for the body; it’s for the world we live in. Every decision we make is thoughtful, from carbon-neutral shipping and FSC-certified packaging to the use of recycled metals in our collections.