Garnet and Zircon Faceted Rondelles measure approximately 4mm in diameter, the Garnet beads have a vitreous luster with an exceptionally high brilliance, the Zircon beads have a near diamond-like luster, these Multi-Gemstone beads show superb faceting and symmetrical shape, and sparkling gem bodies. These Multi-Gemstone beads are an exceptional strand which resemble the best features of diamond - high luster and excellent refraction of light. The hole size is 0.5mm. We recommend using 26-28 guage wire to string these.