Tiffany is selling its most expensive piece of jewelry ever No Comments Uncategorized Tiffany & Co. just unveiled its newest most-expensive bling ever. Tiffany & Co. just unveiled its newest most-expensive bling ever. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)