Amethyst is one of the most sought-after crystals. Being that it is a crown chakra crystal, it enhances your connection to your crown chakra and nurtures your spirituality by strengthening your connection to the ethereal and spiritual realms.
If for some reason you could only pick one crystal, hands down this definitely would be your best choice. Amethyst is also such a stunning and decorative gemstone within itself that even to the most skeptical it still remains to be intriguing and can be appreciated.
Approximate measurements: 7.5 inches in length and the width ranges from .25-2.0 inches.