Jade Necklaces are frequently formed from a metal jewellery chain. Others are woven or manufactured from cloth using string or twine. If a necklace includes a primary hanging feature, it is called a pendant or amulet, if the hanging feature is itself a small container, that is called a locket.The birth of necklaces is believed to be as old as the Stone Age, which is around 40,000 years old. Jade Bangle The oldest necklaces were made of purely natural materials - before weaving and the invention of string, durable vines or pieces of animal sinew left over from hunts were tied together and adorned with shells, bones or teeth or colorful skins of human prey animals, bird feathers, corals, Jade Rings carved pieces of wood, colorful seeds or stones or naturally occurring gems, or other beautiful or artful natural elements found nearby.Cloth working and metalworking greatly expanded the range of jewelry available to humans. Twine and string enabled the development of smaller, more durable, more intricate necklaces. Jade Jewelry After the Bronze Age began and humans discovered how to melt metal and cast it into shapes, bronze, copper, silver, gold, electrum, platinum and a variety of other metals were used to make eye-catching necklaces for both men and women, and metal chains became possible. Gemcutting and glassblowing allowed faceted and highly polished gemstones and/or beautiful art glass to be added to pieces.