Solid Gold Opal Pendant 18K Gold Round Opal Dainty Opal Etsy Sterling Silver Opal Pendant & Chain Opal Necklace UK Opal Jewellery Opal Necklace Pendant Pearl Surrounded with Rose Gold Chain 45cm Huge Opal Pendant Necklace Australian Opal Jewellery Online Store Sterling Silver Blue Opal Oval Pendant & Chain Opal Necklace UK. Includes: A matching box. Style: Minimalist Material: 925 sterling silver, platinum plated, opal Care: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide, which causes the jewelry to deteriorate and corrode over time. Imported Gemstone origin: Australia Product measurements: Chain length: 15. 7 in Extension chain length: 2 in Weight: 0. 06 oz (1. 7 g)