SHOP › Lab grown blue Opal sterling silver stud earrings Image 1 of 3 Image 2 of 3 Image 3 of 3 Lab grown blue Opal sterling silver stud earrings $14.00 Blue Opal (man made) round sterling silver stud earrings. Studs measure 4.5mm Quantity: Add To Cart Added! Blue Opal (man made) round sterling silver stud earrings. Studs measure 4.5mm Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Turquoise sterling silver studs $18.00 Sold Out Lapis sterling silver stud earrings $14.00 Amazonite and cubic ziconia studs with hanging chain $56.00 Sold Out Gaspeite heart sterling silver stud earrings $18.00 Small black Onyx heart sterling silver stud earrings $18.00