Excerpts featuring Alanna Bess from the full article: Published in the Financial Times, March 19, 2015. By Syl Tang Cate Blanchett won compliments for her simple Martin Margiela black dress at the Academy Awards in February. But the dress took a back seat to her turquoise bib necklace by Tiffany & Co. Although considered a semi-precious stone, in recent years turquoise has become increasingly expensive and rare. As a result, its cost to jewellers...