Lithos Collection: Semi-precious stones, Crystal, Dyed Fresh Water Pearls on Silk with 925 Silver Earring Hooks.   Semi-precious stones: Rose Quartz, Cherry Quartz, Amethyst, Agate, Moonstone. Presented in a glass message in a bottle with gift box. Material: 925 Silver Earring Hooks. Measurement: Drop : 3 cm. Many of our pieces are handmade and feature natural materials, semi-precious stones, shells, pearls and so on. Size, colours and markings will naturally vary slightly from piece to piece.