Vintage Pearls with Opal Clasp

[Pearl Dreams]

The pearls can be soaked in a small bowl with the clasp draped over the edge, to play it safe.

 

[ericw]

Borders of stones are apparent: with a strong magnifying glass, it would be possible to see bonding of layers, in case of a doublet.

 

[BeadersSecret]

Akoyas, The clasp I reckon are “jelly opals” (Australian Coober Pedy).