Lichen is a symbiotic relationship between Algae and Fungi ..

Lichen ring with one green Pounamu fruiting bodies

Limited sizes but ask me to try a different size and I can give it a go.

Sterling Silver ring, aotearoa pounamu

available in sterling silver and in all gold karats. 

Pounamu Green Lichen Silver Ring | Redmānuka | nz jewellery