Natural Green Peridot Gemstone Necklace. Lots of gemstones. A solid strand of faceted natural peridot gemstones. The gems are 3.5mm in size. The necklace length is 18-19". The chain and lobster clasp are 14k gold filled or sterling silver - you choose. Wear alone, jumble with other necklaces or easily add a pendant for a unique look. Shipping is Free!