TheTasteJewelry 18mm Round Sea Blue Opalite Beads 15 inches 38cm Jewelry Making Necklace Healing All Opalite in worldwide markets are manmade. Beads amounts see description. Opalite Strand 15 inches = 38cm, hole size: ~0.9-1mm. Genuine & carefully selected. All Opalite beads are manmade for worldwide markets. We choose only the highest grade quality. All Beads are from stock lots. Images are representing, color can slightly vary. All Beads are from stock lots. Images are representing, color can slightly vary as natural items.