The Geddes RingAntique Art Deco Halo Ring The Geddes Ring features an Old European cut natural diamond, bezel set in silver, creating the illusion that the 0. 25ct centre stone is larger than it is. A halo of natural sapphires are channel set in 18K yellow gold, producing an overall iris like effect. The appraisal of the vintage ring is attached as one of the images; there you will find detailed information about the ring, as well as the appraised value of the ring