Performing remedial measures and wearing stone for a particularly planet helps increase the positive aspects of the planet in the horoscope. Scientifically, recital of Mantra for a particular planet forms a protection layer around man. Stone increases the benefic aspects by concentrating rays of the planet and causing this energy to flow into the human body.
How to wear the stone
To obtain the full benefic effects of the stone, wear it when Moon is within a specific constellation on a specified day and time. Wearing it in the specified Nakshatra (star) enhances the benefic effects of the stone. Take the stone of a size specified or greater, in fraction of 1/4 Ratti, rejecting fractions of 3/4 Ratti. Get it studded in the specified metal such that it touches the finger from the bottom. Before wearing it light a lamp and incense sticks and meditate on your God. Clean the ring in fresh milk and then Ganga water. Perform pooja and recite the specified Mantra 108 or 1008 times. Then wear the stone in the specified finger of your right hand. After wearing the ring give alms as specified for that stone. If you are already wearing a stone then avoid wearing a contradictory stone to the specific stone worn previously. A proper judgement of all the planets at birth is crucial in deciding which gem stone can be worn favourably and which stones have to be avoided. A wrong judgement can play havoc and prove harmful.
ruby
Ruby is the stone of the Sun, and wearing of Ruby will protect the native from harmful effects of Sun's afflictions. Ruby is in red color, yellow color, violet mixed red color and in rose color. Ruby will protect one from ill health and grant success in administrative fields, freedom from enemies, debts and diseases. It ensures a long life and promotes independence.
PEARL 
Pearl is the stone of the Moon and wearing of Pearl will protect the native from harmful effects of Moon afflictions. Pearls are available in many colors, but of all the colors, white and red coloured pearls are the best. Round pearls are superior. Flat type pearls should never be worn. Wearing of pearl helps the native get freedom from mental disturbances, happiness from mother, success in educational fields and ensures good health, long life and improves finances. It cures mental disorders, gastric disorders, asthma, breathing troubles and lung disorders.
EMERALD
Emerald is ruled by Mercury. This is a beautiful velvety green colored stone. The Emerald with a deep velvet green to grass green color, radiant, smooth, transparent and with bright rays is the best and most auspicious Gem. Emerald helps in acquiring wealth and the native would be blessed with children, intelligence, good health, wealth, longevity, lands and prosperity, domestic happiness and an obstruction free life. It brings advancement in profession, name, fame and honour. It cures eye diseases, controls B.P. and nervous disorders and turns enemies into friends.
DIAMONDS 
Diamond is ruled by Venus. Diamonds are white, blue, red and black colored. It ensures longevity and advancement in life. It can bless the native with children, happiness, intelligence, name, fame and good fortune. It ensures abundant wealth and success in all ventures. It cures the diseases of kidney and reproductive organs. It drives away evil spirits and bad effects of evil eyes. It ensures happy married life, possession of jewellery and ornaments, rich dress, conveyances, comfortable house and birth of good children.
RED CORAL 
Red coral is ruled by Mars. As the name suggests, this Gem is generally of red color. It may even be of orange red color. Red coral will bestow good health, longevity, courage, name, fame and happiness. The native would be blessed with children, intelligence, good fortune and success in professional life. It would also grant land and property, domestic harmony and gain of wealth. It cures all kinds of mental diseases, physical diseases and difficulties. It saves one from natural calamities like thunder, floods and fires. Its use also helps in removing impediments that could be delaying one's marriage. Woman with history of abortion should wear this for successful delivery.
BLUE SAPPHIRE 
This is ruled by the planet Saturn. Blue Sapphire is available in dark, ordinary or light blue colors. Blue Sapphire is believed to give very beneficial results. But in case it proves unsuitable, it could destroy the life of the native. This Gem should be worn only after a trial. By wearing Blue Sapphire one gets good servants. The native will always enjoy happiness, prosperity, name and fame, advancement in profession and favours from government. It bestows good health and success in all ventures. The native will get land, building and properties. It also ensures success in politics. One could become either a King or a great scholar by wearing Blue Sapphire.
GOMEDA
Gomeda is the Gem Stone of Rahu. It's color varies from red, smoky to honey color. Use of Gomeda will bestow good health, victory over enemies and bring wealth and prosperity to its owner. It cures diseases, gives knowledge and intelligence. It promotes good education and ensures improvement in the profession. Native's business will flourish. The adverse effects caused by evil also vanish. One gets quite active by wearing Gomeda and gets promotion in the service. It can give unexpected wealth to its wearer. It bestows a very happy life, and the enmity of relatives disappears. Evil spirits go away. It ensures sound sleep and gives peace of mind.
CAT'S EYE 
Cat's Eye is Gem Stone of Ketu. This is yellowish or blackish in color. Inside there is a shining band which moves when the stone is turned. This is a quick action Gem and restores lost wealth. Poverty and diseases vanish. It ensures victory over enemies and protection from enemies. By wearing a Cat's eye one is be attracted by others. It grants philosophical disposition and activity of the mind. The native gets name, fame and wealth. He becomes calm and his anger disappears. He receives the help of relatives and friends. Enemies may bow to him. It works successfully in getting back the loan money too. It ensures the welfare of childeren. Childless person may be blessed with childeren. It protects from accidents, pimples and skin diseases. It ensures quick marriage.
xmn (Moderator)
so u believe in power of gem
