Yellow sapphire is the gemstone recommended to be worn for Jupiter. The yellow sapphire will radiate the qualities of generosity, wisdom and compassion. It serves to strengthen the Jupiterian energy and attract the energies ruled over by Jupiter. Many times a change is effected in financial status within a short period of time. It serves to bring material abundance and prosperity, as well as a more philosophical outlook on life. Those that practice meditation find that in wearing the yellow sapphire, their ability to concentrate increases, thereby magnifying the peace and joy reaped from such spiritual discipline. Physically it can raise levels of energy, help to gain needed body weight and to strengthen the overall immune system. It also strengthens the liver and respiratory system.Yellow sapphires should be clear to the eye and of a lemony-yellow to golden-yellow color. It is commonly heat-treated to make it more saleable to the public, although many people have never seen nor heard of one. If heated it gets a darker orange-gold or brownish yellow color and this material is useless for our purposes, for its inherent potencies have been destroyed in the heating process. Occasionally a very few untreated yellow sapphires are found in a much more intense, extremely deep color that can almost look treated, but an expert gemologist can tell the difference.