Fine jewellery built on a geologist's knowledge of stone.

I'm Maria Rosic, and I read rock for a living. As a hydrogeologist I work with the way water moves through ground, and with what minerals record about the conditions that formed them. That knowledge decides what goes into a piece before any design begins.

The rhodolite in the Northern Star is a garnet, and garnet holds the temperature and pressure it grew under in its structure — we read it backwards to find out what a mountain survived. The chrysocolla in the Meander Drop formed where copper-bearing water moved through fractured rock, and its veining is the path that water took, held still. Every stone here is a natural gemstone with a formation history. None of it is glass, resin or dyed imitation.

The pieces are made in small batches in a single workshop, hand-finished rather than mass-cast. Solid 925 sterling silver, and where gold is used it is 18k vermeil laid at 2.5 microns — five times the thickness of standard plating, over silver rather than brass. Built to be worn regularly and repaired rather than replaced. We repair Marosi pieces for as long as you own them.

I also work as a stylist, with runway production and editorial behind me, and that half of the practice shapes the other. Knowing what a stone is matters. Knowing how it sits on a collarbone, catches light across a room, or holds up under a photographer's lights is a different discipline entirely. Marosi is where the two meet — for women who wear their story.