A substantial Piroman 13.02ct fire opal pendant This particular opal has been named 'Adamas' due to its significant size, richness of colour and excellent clarity. 'Adamas' in ancient Greek meant 'Unconquerable, invincible' Mined from the Laverton area of Western Australia this rare, beautiful facetted 13.02ct fire opal, has been set into a handmade 18ct yellow gold pendant, by Mt. Lawley Jeweller, Samantha Nordhoff, of Nordhoff jewellery Couture