Shop › Large Round Blue Opalique Studs Large Round Blue Opalique Studs £38.00 Polished round silver studs with a created blue opal centre. Post and butterfly fastening. Polished round silver studs with a created blue opal centre. Post and butterfly fastening. Purchase Added! You Might Also Like Silver Squircle Studs - Peridot £48.00 Diamond Framed Drop Earrings - Blue Chalcedony £32.00 Polished Silver Cushion Stud £30.00 Mixed Shape 3 Stone Earrings - Mystic Topaz £42.00 7mm Small Round Gemstone Studs - Sapphire Quartz £25.00