Emerald

"Who first beholds the light of day
In spring's sweet, flower month of May
And wears an Emerald all her life
Shall be a loved and a loving wife." ~The May Birthstone Poem
The month of May is lush and green just like it's birthstone the Emerald. It's green color is said to have a calming effect on our heart and mind. It's Chakra is the heart, which promotes sensuality, love, romance and beauty. By settling our hearts, the Emerald can thus help produce domestic bliss and favorable love relationships.
It is also known to encourage spiritual growth, to give powerful insight and prophecy.