South Sea pearl oyster blister from Indonesia with strong silver-white nacre and flashes of blue, pink and gold.
The reverse is especially interesting, showing three rounded blister formations still attached to the original shell. A nice example for seeing both the finished nacreous surface and how the pearl blister formed within the oyster.
41.3 x 20.1 x 7.5 mm / 30.2 carats
Estimate: $135 - $150