Sweet little opal necklaces to add a bit of happiness to your neckline!  The featured photo shows a flashy green opal surrounded by fine silver dots and circles.  It is shown on a twisted sparkling chain with a spring clasp. (Chains can be switched if available).  The second opal is more triangular and has a distinguished (and more subtle compared to the green)  blue green flash.  It is on a faceted small ball chain and has a small lobster clasp.  Triangular necklace: sold
 
Australian Boulder Opals, Fine & Sterling Silvers
Both are roughly around 1/2" x 1/2"
Sterling silver 18" chains