I am venturing into making and selling the kind of jewelry a paddler or mermaid will wear. 
 
Tiny sterling silver turtle charm with inlaid (most likely) lab opal. Weight, a light 2.2 grams. 2/3rd inch long and 1/2 inch wide. In excellent condition despite having surfed with me many times.
 
Ships with an anti-tarnish Intercept bag for storage.