This is a serious piece of astrological jewelry. It's a pendant or locket featuring a large, natural Yellow Sapphire (known as Pukhraj) weighing between 12.25 and 12.50 carats. The gemstone is rated AAA quality for its color and clarity. It's set in a 'Panchadhatu' pendant, which is a traditional alloy of five metals often used in Vedic astrology for Jupiter stones. Yellow Sapphire is associated with the planet Jupiter and is believed to bring wisdom, prosperity, knowledge, and good fortune. It's often recommended for those in business, law, or religious pursuits. Important note: This is considered a powerful gemstone in Vedic astrology. It's traditionally worn on a Thursday evening, and there are specific guidelines about which other gems it should not be worn with. Always consult with a knowledgeable astrologer or jeweler before wearing astrological stones. This is a substantial and high-quality piece for those seeking an authentic Jyotish gem.