No, I never heard of a specific violet wand. But violet is the color that vibrates the fastest, that's why the energy from the color is so positive. If you can find a metaphysical store or someone who works with crystals or gemstones, try to find a wand or at least a good sized piece of amethyst. That can work as well as a wand since amethyst is the right color and works the same way. It helps ease blockages in the chakras and is emotionally and spiritually calming.
Any good-sized piece of amethyst will be helpful in these regards. It's not super expensive. I have a big chunk I wear as a pendant, it's tear-shaped, but about 2 inches big. I think I paid about $50.00 for it, but it's beautiful. I wear it on a sterling silver chain. It brings good energy, psychic insight, and emotional healing.