Pushparaga or yellow sapphire was known as "Oriental Topaz" until the mid-19th century. Colours vary from light to golden yellow and have considerable lustre.
Pushparaga or yellow sapphire harmonizes and brings the benefits of Guru, or Jupiter, the largest graha (planet) in the solar system. It signifies knowledge, wisdom, virtue, fortune, justice, education, religion, philosophy, devotion, children, distant travel, spirituality, truthfulness, prosperity and charity.
Guru is the major instructor or teacher and influences action with the highest order and balance. Guru guides action in the most harmonious and uplifting manner and balances inner and outer input while simultaneously performing and monitoring action.
Guru or Jupiter's influence in the human physiology is through the globus pallidus. This globular structure is like a teacher in the physiology. Guru gives balanced and higher-order instructions, balances and maintains harmony between inner and outer input, manages and executes complex systems and enlivens activity in the brain while guiding action. It signifies highest-order thinking; "Knowledge has organizing power."