Crystals for Fertility — Increase fertility with Rose Quartz, Moonstone, Carnelian, or Garnet. Moonstone has a powerful connection and effect on women&#x27;s menstrual cycles. Garnet and Carnelian also enhance libido. Place your preferred crystal(s) at the Sacral chakra for about 15-20 minutes a day while you relax. You can also make a gem elixir and rub a few drops on your Sacral chakra in the morning and at night.