Navratna jewellery is set with the Navagraha which literally translates to the ‘nine precious stones’ representing the nine planets of the Hindu astrological system and their associated deities.These stones are worn individually or all together in a jewel called the navratna believed to negate danger and to attract beneficial influences and energy. For further reading see O. Untracht, Traditional Jewelry of India, London, 1997, p.304. For a necklace of similar structure with a closely related pendant attributed to Delhi see The Journal of Indian Art, Vol. XII Nos. 95-107, Thomas Holbein Hendley, Indian Jewellery, Delhi, reprinted 2009, pl. 5, no.20.