Her beautiful birthstone and elegance perfectly combine in this round iridescent lab-created opal solitaire drop pendant - a simple look she'll want to wear with everything. Crafted in warm 10K gold This drop simply glistens with a 6.0mm iridescent lab-created opal cabochon. The slightly curved linear bail adds a playful touch. Opal is the traditional birthstone for October and embodies long and lasting love. This pendant suspends along an adjustable 18.0-inch cable chain that secures with a spring-ring clasp.