Clear Quartz Point with top polished but sides unpolished.
"Quartz is the most powerful healing and energy amplifier on the planet because of its unique helical spiral crystalline form. It absorbs, stores, releases, and regulates energy and is excellent for unblocking it.
This crystal raises energy to the highest possible level. Containing every color possible, Clear Quartz works on all levels of being. Storing information like a natural computer, these crystals are a spiritual library waiting to be accessed. It enhances psychic abilities and attunes you to your spiritual purpose. Used in meditation, Quartz filters out distractions."
-Judy Hall's Crystal Bible
Price is per stone. Made by the earth, so each piece is different.