Sea glass. Beach glass. Marine gems. Sea sapphires. Mermaids tears. Atlantic amber. At the meeting edge of water and land these sea-jewels are created from glass washed up onto the shoreline and worn down to smooth organic forms by the constant surge and ebb of the tide.

These translucent pebbles can be found in a vast palette of greens, blues, browns, whites and very rarely red, gold, pink, purple, turquoise, lime green, orange. Greens range from pale olive to dark emerald. Blues are mainly pale aquamarine to the very occasional piece of dark cobalt blue. Browns range from pale to darkest amber.

To many these sea glass jewels are as precious as real gems. Some of the glass is very old (such as the almost black olive green of 17th century bottles from shipwrecks on the Scottish coast). Some of the colours are extremely rare (violet pink - found on Levuka beach, the old capital town of Fiji Islands), and the shapes are designed by a superhuman creative force: Nature.

Sea glass is the perfect medium for a modern consumer society for which recycling is now eco-chic, but its discovery is nothing new. The Victorian poet Coventry Patmore writes of his young son's collection of glass abraded by the sea, and Virginia Woolf imagined creating jewellery from a lump of opaque glass, once the sand coating was wiped from it:

"You had only to enclose it in a rim of gold, or pierce it with a wire, and it became a jewel, part of a necklace, or a dull, green light upon a finger."

Gina Cowen
Seaglass 'jewels' by Gina Cowen