Navaratna

Navaratna (Sanskrit: नवरत्न) is a Sanskrit compound word meaning "nine gems" or "ratnas". Jewellery created in this style has important cultural significance in many southern, and south-eastern Asian cultures as a symbol of wealth, and status, and is claimed to yield talismanic benefits towards health and well-being. The setting of the stones is believed to hold mystical powers tied to the astrology and mythology of Hinduism, Jainism, and Buddhism. The historic origin of the navaratna is tied to the astrological concept of "Navagrahas", or "nine celestial gods" (planets).
The stones are often set within gold or silver jewelry, with a ruby as the centerpiece representing the Sun. Each additional stone around the ruby then represents another celestial body within the Solar System, or a node, in addition to representing good fortune and the characteristics of various religious figures. For traditional purposes and the purported health benefits, the arrangement of the stones and their position on the body is of particular significance, as is the quality of the gemstones.
In each culture, the Navaratna largely reflects the same core concepts associated with the stones. Their arrangement is considered sacred in almost all the countries of Asia, including, India, Nepal, Sri Lanka, Singapore, Myanmar, Cambodia, Vietnam, Indonesia, Thailand, and Malaysia, regardless of religious and cultural differences.
In Thailand, the Navaratna is officially recognised as a national and royal symbol. A specific honour awarded by the king is called the "Noppharat Ratchawaraphon" (the Ancient Auspicious Order of the Nine Gems).
The decoration consists of a single class (Knight). The insignia is:
Late Thai astrologer Horacharn Thep Sarikabutr has given the meaning of these nine gems in his Parichad-Jataka (chapter 2, verse 21, pages 35–36) translated as follows:
This quote, attributed to Brihat Jataka and is mentioned in Mani-mala as well as Jataka Parijata
Translation:
"...these gems must be high-born and flawless."
The traditional setting and arrangement of the Navaratna are illustrated. A ruby (representing the Sun) is always in the center, surrounded (clockwise from the top) by a diamond, a natural pearl, red coral, hessonite, a blue sapphire, cat's eye, a yellow sapphire, and an emerald.
Traditionally, no gem other than a ruby or a red spinel is set in the center of the arrangement. Because the Sun is the center of the Solar System, its gem is positioned in the heart of a Navaratna Talisman.
For an example of the Navaratna in a necklace setting, see Thailand's "The Queen Sirikit Navaratna."
In the above sloka the words sujatyam-amalam (sujati=high born, and amala=completely pure or flawless) are significant. According to Asian belief systems, only clean, top-quality gems are considered to be auspicious.
In the Hindu Garuda Purana, chapter 68, verse 17, it is stated by the narrator, Sri Suta Goswami that:
A similar concept exists in the Agni Purana, chapter 246, slokas 7 and 8:
According to Hindu astrology, life on Earth is influenced by the navagrahas, or nine influencers (the planets). The placement of the navagrahas in one's horoscope is supposed to influence an individual's life. Wearing the nine gems is said to provide an astrological balance and benefit to the wearer. In Hindu astrology, it is believed that these gems may have both positive and negative influences on human life and that astrological gems should be worn only after consulting an astrologer. Based on an individual's sidereal horoscope, either a single gem or a combination of compatible gems is advised to be worn to harness beneficial planets or counteract harmful planets. The supposed "astrological" or "piezoelectric" benefit of wearing or donating gems has not been scientifically quantified.