Radiant Beads are available as a set of 5 to 10 beads that emit 4 micro-sievert/hour of natural radiation strength. We cannot guarantee exact colours because the beads are rare. We measure and calibrate the necklaces using a geiger counter. The price in US Dollars is $40 plus $8 shipping.
We do guarantee their strength in micro-sievert/hour as measured in our lab before shipping is in the 3 micro-sievert per hour range. This results in a yearly exposure (if worn constantly) of 26 milli-sievert/year. Please visit the http://radiation-hormesis.com page to see the science behind Radiant Beads.