This necklace is a truly gorgeous piece, it is crafted from sturdy silver stainless steel and features a round bezel set simulated opal measuring 8.5mm. 
 
Specifications
Pendant Size: 8.5mm  
Clasp: Lobster
Stone Type: Simulated Opal (Man-made) 
Chain Length: 45cm (18 inches)
Thickness: 2mm
Finish: Silver
Base Material: Stainless Steel