It's called the Dream Stone, not only will it give you lucid dreams but it will help to interpret them if one is put under your pillow. If you add another type of jade, the Gold Jade, it'll help bring a spiritual teacher to your dreams bringing you wisdom.
Green is a colour which is said to attract money to your life and green jade will do the same, hold one in your hand and visualise money being used wisely. The same goes for furthering your career or bringing you one if you are looking for work.
Nephrite Jade will balance the yin and yang in yourself, so you have neither too strongly male or too strongly female energies and can be more balanced in yourself, so if you feel you need encourage yourself more in some behaviour or want to stop another this will aid you, especially if you are overly critical or irritable. It is also a cleanser, good for eliminating waste from the kidneys, spleen and blood.
A lucky stone bringing the user good luck. The property it's most often associated with is love which it is said to attract. For lovers the stone will encourage a deeper love and a more erotic one. It beings users joy and happiness, what a lovely stone to have.