In part two of a series examining the impact of lead glass-filled rubies on the market, we look at disclosure politics in the tradeWhen the Federal Trade Commission announced plans in April to revise its Guides for the Jewelry, Precious Metals, and Pewter Industries, last updated in 1996, Craig Lynch was beyond pleased. The owner of Ouellet & Lynch, a Phoenix-based consulting and appraisal firm, knows plenty of retail jewelers who’ve encountered lead glass–filled rubies sold as natural stones—and he’s eager to see the issue addressed by the authorities. (JCK explored the phenomenon in “The Ruby Ruse,” May 2012.)Lead glass–filled rubies are “changing the perception of what ruby is—that it’s not that expensive in its true and unheated form,” explains Lynch.To ensure the matter received the attention it deserved, Lynch and gemologist-author Antoinette Matlins visit