Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Bubbles- Quartz US$189.00 Hand knotted necklace with clear crystal quartz beads. Finished with 925 sterling silver.Features 2 inch extension chain. Add To Cart Added! Hand knotted necklace with clear crystal quartz beads. Finished with 925 sterling silver.Features 2 inch extension chain.