From Longman Dictionary of Contemporary Englishjadejade /dʒeɪd/ noun [uncountable] 1 
DCJa hard, usually green, stone often used to make jewellery a jade necklace2 (also jade green)CC the light green colour of jade
DCJa hard, usually green, stone often used to make jewellery a jade necklace2 (also jade green)CC the light green colour of jadeExamples from the Corpus
jade• There had been stone dragons, and jade dragons so delicate that they disintegrated at a puff of breath.• Uncle Shim would dab his mouth with a silk handkerchief, adjusting his green jade bowtie.• I don't deal in jade.• Indeed it is hardly too much to speak of jade and gold as embodying distinct standards of value.• That sort of green, a clear, pale, jade, was her colour.• Silk, jade and spices became valued commodities.• She stole the jade but she's trying to put the blame on me.• Drinking water in which jade has been soaked will strengthen your body.Origin jade (1500-1600) French from early Spanish (piedra de la) ijada “(stone of the) lower back”; because it was believed that jade cures pain in the kidneys 