The empirical studies of our ancients reveal that besides medicines the gems and colors are capable of providing good health, mental and spiritual happiness. The efficacy of the gemstones is recognised by the Ayurveda, the ancient system of medicine.
The importance of time, which means the planetary influences at a particular point of time and at a particular place has always been recognised since ancient times. The references have been found in the Hindu scriptures, Islamic literature, Shakespearean era and the New Testament. It is also firmly believed that the potency of medicines and its curative power increases when the medicine is administered at a particular time of the day and in a particular season.
Different planets represent the various colors. To provide strength to the weak birth (natal) planets, the divine science of astrology recommends use of gemstones for the favorable planets in an auspicious time.
The strength of the planets is raised through the application of influence of concentrated rays of a particular color of a gemstone, which represents a particular planet.
The gems represent the rays of light peculiar to different planets. The men and women use them for raising the power of planets besides wearing them for ornamental purposes. From astral quality point of view the stone should be clear, of proper carat weight, without air bulbs in the stone, color, luster and without heat treatment.
Gems can be worn in a pendant in an auspiciously elected time. They are usually worn in a ring in the following fingers:
Ruby in left ring finger;
Pearl in left little finger;
Red Coral in left/right ring finger;
Emerald in right little finger;
Yellow Sapphire in right index finger;
Diamond in right ring finger;
Blue sapphire in left middle finger.
We indicate the gemstones and colors ruled by each planet. These are the gemstones recommended to begin use in an auspicious time for particular planets if they are favorable in one's birth chart. The weight recommended for all the gems except diamond is between 4.6 to 4.7 carats. The recommended weight for diamond is 1 carat.