Australian Opal Beads Plain Rondelles measure approximately 5mm graduating up to 7mm diameter in size. These Opals have a waxy luster creating a symmetrical rondelle shape, and the beads show play of color in green-blue-orange-violet-yellow-periwinkle hues, their body colors are a bluish grey to a cream hue. These gems present with an opaque and lovely unfaceted Opal rondelles.