Created Opal Round 8mm Round Beads for Fine Jewelry White Lab (1) Created opal 8mm fully drilled round bead, sold by the bead Very good colors, well drilled and polished, 1.2mm (.047" hole) Synthetic Opal made in Japan, Kyoto method Cultivated with a quartz-grain structure 1 specified buys 1 bead, 3 buys 3 beads, etc.