I am Kat, a surfer, writer and crafter from Llangrannog, and I make jewellery using Ceredigion seaglass and sea-pottery from the beaches around my home.

Seaglass is discarded glass which has found its way into the ocean and been tumbled by the waves until its edges are smooth and its surface textured and opaque. Seaglass has usually spent years in the ocean being affected by the energy of its rhythms. It looks beautiful next to skin and seems to draw the light to it.

The most common colour of seaglass found in this area is white, followed by pale sea-foam blue, followed by bottle green. Nice pieces of blue (especially deep cobalt blue) are quite rare. Amber and brown don’t turn up very often; red and any other colours are very rare, special finds. Most shards are about the size of a ten-pence coin, but one afternoon will usually turn up at least one large piece and some shaped pieces. There are lots of bottle-bottoms and bottle-necks and a friend gave me one piece of bottle-stopper. I love to find pieces with letters or whole words on them — I might turn up five or so of these in a season.

Low tide is the best time to search for seaglass and sea-pottery on the strandline, and certain beaches always turn up better examples than othes…but those are the dedicated beachcomber’s secret!

Each piece is drilled using diamond-tipped drill-bits and lots of patience. I then add charms and silver findings. My designs are simple, intended to show off the natural beauty of the material and reflect the colours of the water and beaches of the stunning Ceredigion landscape.

Each piece is totally unique; a true piece of Wales’s coastline to keep forever.

Pieces with silver charms featuring Carreg Bica (Llangrannog’s legendary guardian rock) are handmade by me and are 99.9% pure silver. This is a little softer than normal 925 silver so they should be protected from too much daily wear and tear. You can read the story of Carreg Bica on my website surfergrl.co.uk.

Seafoam glass has a natural pale blue or green tint which is due to natural iron impurities in the sand that the glass was created from. Millions of Coca Cola bottles used this colour, and many pieces of seaglass originated as Coke.

Cobalt blue seaglass is relatively rare because the colour comes from cobalt oxide, an expensive additive.

Gold chloride was used to make red glass, so red is very rare and expensive, and hard to find.