These are new, old stock (NOS) Australian opal necklaces from the 1980 to 1990s—2 Available. These pieces are not a neatly in their packaging as before as the cover photo shows. Each comes in its own packaging describing the item the item as “natural opal set in sand stone.” On 18 inch, a tag on the clasp reads 18kgp (18k gold plated, means not gold). It is vintage and the chains could use some clean up. Photos show the actual items for sale. Sold individually.