About Us

Zayi & Co. was founded on a simple conviction: that a gemstone should be exactly what it claims to be, and that owning one should feel like an occasion, not a transaction.

Every stone that enters our collection is sourced with the same question in mind — would we keep this one ourselves? We work with a small, trusted network of cutters and dealers to bring you natural, independently certified gemstones: unheated sapphires, vivid tsavorite garnets, rare cobalt spinel, and more. Nothing passes through our hands without documentation from a recognised gemological laboratory, whether that's LGL, TGL, NSS, AGL, ZGL, or CSL.

We believe the story of a gemstone matters as much as its sparkle. Where a stone comes from, how it was cut, whether it has been treated or left exactly as nature made it — these details shape not just its value, but its meaning. That's why every listing on Zayi & Co. tells you precisely what you're getting, backed by paperwork you can trust.

Whether you're a collector chasing a particular hue, a jeweller sourcing for a custom commission, or simply looking for a stone with a story worth telling, we're here to help you find it.

Based in Australia, trusted by collectors everywhere.