Platinum Guild International holds its fall preview of designer jewelry collections. Style expert Michael O'Conner discusses several important pieces from the fall collection. Platinum jewelry  features diamonds in polished and rough form, gemstones, rubies, and tanzanite.

Featured designers, in order of appearance,  include William Goldberg, Diamonds in the Rough, Shamballa Jewels, Tom Rucker, Graham Edney, Beladora.com, J.W. Currens, and Ashok Sancheti.

If you haven't seen a platinum wedding dress before, Platinum Guild displays this one-of-a-kind use of platinum for the bride-to-be, which is designed by Domo Adami.