Amulet Triple Magic Energy Celtic Triquetra Shield Knot Black Agate Pendant Necklace Best Amulets Collection. Amulet Triple Magic Energy Celtic Triquetra Shield Knot Spiritual Powers Black Agate Wish Totem Gem Stone Pendant Necklace Amulet Triple Magic Energy Celtic Triquetra Shield Knot Black Agate Pendant Necklace Only Gemstones are used and Each Amulet will be Unique and one of the Kind. Amulet Totem SIZE: About 2 inches. All Art Work is Engraved on top of the Gemstone. Colors and Texture may slightly vary being Lighter or Darker vary due to Natural Qualities of Gemstones. Ready to wear with Cotton Waxed Cord which Adjusts from 15 up to 24 inches long and you may wear it any length you desire