I love these antique periwinkle shells. I haven't found one in ages, so this was a treat! 
Converted from a brooch, the textured gold shell has a cultured pearl nestled into the opening. 
We have added a generous recycled gols jump ring, in our usual style.
Stamped and tested as 9ct gold 
Weight approx 1.07g
Total drop approx 18mm
Width approx 9mm
Excellent antique condition