Mystical Wonders Discussion Group This is the #1 spiritual / mystical group in the world that encompasses literally all fields at one forum with tons of archived discussions and thousands members worldwide! Existing since 2003.
If you want to wear the stone in a ring then this site seems to have a number of options. But you can also try a site called https://ratna-bazar.in/shop for a vast choice of things in Amethyst as well as in various other stones and crystals