Life Tree Silver Necklace. 925 Sterling Silver Tree of Life Necklace. This special design with a Tree of Life theme is a meaningful, useful, permanent and valuable corporate gift for customers, dealers and company employees with the message of adherence to our roots and reaching the future. The tree of life is one of the common cultural elements of humanity known and loved all over the world. It is a symbol of fertility, immortality, roots, luck, fertility and health in world cultures. The sacred tree that is told in the center of the world in mythologies is the tree of life. The tree of life is also named as cosmic tree, world tree, universe tree and tree of life.