Material: Baltic Amber 925 Sterling Silver. Necklace length 17.5" can be adjusted to 19.5". This joyful three dolphin piece silver Baltic amber necklace can be mixed and matched with our "Dolphins" earrings. It is believed that amber brings luck and protection to people and it has been a symbol of love, marriage, and eternal youth. Since amber is a natural stone, its shape and size may vary slightly. Handcrafted in Europe.