To the popular Valentina series, a gentle pink color Rose Chalcedony is joining. Product name: JR 023 Material: Hydro quartz, silver 925 in 18K gold plate SIZE: No. 9 * Hydro quartz ... synthetic quartz made with hot water method (hydrothermal). It has the same composition as natural crystal. * Please be careful not to attach it to water as the stone is easy to come off the pedestal.