Each tumbled and polished gemstone is approximately 12-25mm.   Listing is for 1 tumble.
 
Amethyst properties include:
Known as the All Healer
Stimulates creativity
Helps battle addiction
Excellent for meditation & spirituality
Enhances psychic abilities
Good for calming, adhd, sleep & focus
 
Chakra: Third Eye
Zodiac: Pisces, Aquarius
Element: Air
Planet: Jupiter