Panna, known as emerald in English, is the most popular variety of beryl mineral. It is associated with the planet Mercury or Budh, which represents intellect, love, wealth and abundance. Buddha Ratna is worn on the little finger of the right hand. If your birth chart features a weak placement of Mercury, you can wear this green gemstone. It benefits you in all spheres of life, whether in finance or personal or professional aspects. Moreover, it's all about your belief that makes this gem positively work for you. The stronger your faith in gemstone working, the more positive results you get. Generally, the original emerald stone takes 2-3 days to show its effects.