A Blue Chalcedony Solitaire Ring delicately set in a rubover setting in 18ct white gold -750. Discover the radiance of a full moon with the heavenly Chalcedony single stone ring, encased in an 18ct Gold mount, exposing the Gem, further intensifying is tones. The Chalcedony's gentle energy is said to help balance the mind, body and spirit whilst reducing hostility and improving intuition. Stone measurements 16mm x 16mm. available in 18ct yellow gold. 18k Gold chalcedony ring.