Dainty Blue Opal Oval Outline Necklace Comes with an 18" 925 Silver Italian Cable Chain. The Pendant has a Silver Oval Outline which is shaped and contoured, set in the centre is a vibrant 8 x 5mm Blue Opal Shell Oval cabochon. The pendant is 3 1/4cm including the bale x 1 1/2cm wide. This Beautiful pendant is finished off with a high Polish.