Gemstone / Material: Crystals quartz and mixed stones. Usually use for healing, energy magnification, protection, remove negative energy, and promote love, friendship and so on. Size & Color: A variety of colors are available to meet your different needs.The round shape is suitable for various occasions, simple but elegant. Easy to Use: These cabochons are flatbacks and can be glued to pretty much any surface you want to embellish, or you can use them to make custom earrings, rings, pendants, necklaces. Wide Applications: Round gemstones are widely used, good for setting, suit for DIY jewelry design, used for earring, cuff link, ring and other crafts. Great for Decoration: The cabochons are perfect decorations for your vase, fish tank, plant pots, photo frame or use wire and cord to wrap a pattern around the stone and more.