This opal triplet is made up of three layers. The bottom layer is black onyx, the center is opal, and the top is clear quartz.  The quartz almost acts like a magnifying glass at certain angles. The opal is super sparkly in all lighting conditions, even low light! This one can only be truly appreciated in person, no camera will ever do it justice.  
It's set in sterling and fine silver, oxidized, and hand polished.  
Measures approx 1.75" x 1" incl bail.  
Stainless steel chain included.