I have two strands from Gemisphere (you can google it) and I love them both.  The quality is great, and I can really tell a difference with wearing them.  Gemisphere's website is very user friendly and can walk you through choosing the stones you need.  They also have great customer service and were more than willing to talk to me about a couple of different options I had so that I was confident about my purchase.  I really cannot recommend them enough.

I've also bought crystals on ebay before.  I've got three sellers whom I can count on for a quality product, and those are the ones that I usually buy from.  I will try other sellers, but I'm very selective.

The majority of my crystals have come from Gem & Mineral shows and some of the Psychic Fairs.  The ones from the latter tended to be more expensive, however, those vendors where the ones who could direct me to the proper crystal based upon the result desired.  At the Gem shows I just take a list with me of anything I am looking for and don't expect much help in the gemstone healing area.

Hi Teressa! By this time you prob got you ans. as to where the best place to find your crystals? Could you share it with me? Avery much new with this thing and am really exited to learn more about it.

Heaven & Earth
http://www.heavenandearthjewelry.com/
catalog is free.I have purchased many gemstones from them

another one is Healing Crystals. I have also purchased stones from them.

http://www.healingcrystals.com/