At KORITE, they believe that everyone deserves to own a little piece of luxury. That's why they're thrilled to introduce their Essentials Collection, which offers attainable luxury without compromising on quality or style. Standard grade Ammolite 7mm Round Ammolite Gemstone Chain Length: 16in + 2in extender 925 Sterling Silver Lobster Clasp with Ammonite Accent Like all gemstones, Ammolite should be treated with care and attention. -Avoid exposure to direct heat. -Do not over-expose to water. -Avoid hard impact to the stone -Do not clean in ultrasonic cleaners -Use a soft, none-abrasive cloth to clean your Ammolite jewellery.