Crafted in 18-karat Yellow Gold and Diamond. The Forever and Always a Pair Bookend Bands symbolize Wholeness and Love. An Ouroboros, an ancient symbol depicting a snake eating its own tail, symbolizes the experience of unity. The diamond pear shape symbolizes that each pair comes at a time in our lives when something just feels right. These pairs of pears, we absorb them, fuse them into our own hearts, and our heart grows as a result. The Bookend Bands can be worn alone or Bookend your ring stack, works best with rings under 2.2mm thick.