RUBYCA Amethyst Natural Gemstone Beads Amethyst is a violet variety of quartz often used in jewelry. It is a semi-precious stone in todayâ s classifications, but to the ancients it was a â Gem of Fire,â a Precious Stone worth, at times in history, as much as a Diamond. It is the traditional birthstone for February. Amethyst was used as a gemstone by the ancient Egyptians and was largely employed in antiquity for intaglio engraved gems.Gemstone Jewelry Care and Cleaning: Gemstones can be cleaned very easily using warm soapy water and a soft brush. Keeping in mind about the stone's hardness and durability, be sure to not use any other objects that are harder than it for scrubbing or cleaning. As with most gemstones, you should not use any household chemicals when caring or cleaning your beads and should avoid any prolonged exposure to extreme of heat as it may cause permanent damage to the gemstone. Your Natural Gemstone Beads should be kept away from other gemstones and jewelry to ensure unnecessary damage or scratching from other harder gemstones.