Our peridot pendant necklace is made with an oval cut natural peridot gemstone set into a 925 sterling silver setting with an open back. Adds a sparkling lime green color to your look in a classic pendant style. Goes with any occasion dressed up or down and perfect for an August birthstone gift. Stones are 9x7mm dangling from our dainty cable chain that closes with a spring clasp. About Peridot: Peridot is a natural untreated gemstone and the birthstone for August. It is one of the oldest gemstones that date back to 1500 B.C. Peridot belongs to the Olivine group of gemstones rich in iron with colors varying from a lime green to an olive green to a yellow green. The iron deposits in the stone determine the amount green color. Peridot can be found in many places around the world, and stones have also been found in meteors, Mars, and the moon. Materials: Natural peridot 9x7mm gemstone oval faceted cut 925 sterling silver cable chain and setting If you have any questions just click "message seller" on our homepage. Thank you for visiting our jewelry shop, Linda and Joe .