Multi-Gemstone Beads Faceted Rondelles measure approximately 3mm average in diameter, have a vitreous luster, excellent cut and polish, transparent to opaque bodies exhibiting internal characteristics, the gems on the strand consist of a lightly to deeply saturated group of brilliant gemstones, the gems consist of an assortment of Crystal Quartz, Chalcedony (in a variety of treated colors), Opal, Labradorite, Pyrite, Amethyst, Iolite, Rose Quartz, and Honey Quartz rondelle beads. Strands will vary slightly for colors and gem types.