Jade Nephrite Authentic Green Stone Donut Agago Necklace Pendant and 18 inch Sterling Silver Whirl and Chain. Jade is thought to be a symbol of purity and serenity - signifying wisdom gathered in tranquillity it increases love and nurturing. It is thought to be a protective stone keeping the wearer from harm - bringing harmony - and attracting good luck and friendship. Physically Jade Nephrite is thought to be a cleansing stone aiding the body's filtration and elimination organs. Green Jade Nephrite calms the nervous system and channels passion constructively. The green colour of the Nephrite Jade is glorious and creamy - a relaxing and calming colour to heal the soul. Length 30mm, Width 30mm, Depth 4mm, Weight 7 gms. 18 inch Sterling Silver Chain. Sterling Silver whirl donut holder.