Necklaces have been an integral part of jewelry since the time of ancient civilizations and pre-date the invention of writing. The birth of necklace is believed as old as stone age, which is around 40,000 years old. The oldest necklaces were made of purely natural materials.
Necklaces are to be worn near the fourth Chakra, heart. The heart Chakra vibrates to color green, since we often associate it with rosy or pink. While these colors are also very healing to heart, it is actually the healing green of Mother Nature herself that resonates with our best heart center. If one can find the most suitable necklace to put on, based on his/her astral zodiac birth stone, it helps to eliminate or decrease various heart diseases.