earrings › Vintage Opal Glass Stud Earrings Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Vintage Opal Glass Stud Earrings $40.00 These look like an iridescent opal mermaid shell, set on nickel free backsThis is a one of a kind pair & are ready to ship Get notified by email when this product is in stock. Purchase Added! These look like an iridescent opal mermaid shell, set on nickel free backsThis is a one of a kind pair & are ready to ship