Most gemological authorities count on a medium to medium dark-purple colour tone in a ruby. Stones lighter than this are identified as pink sapphire. However, there is not any normal agreement on how to draw the line among rubies and sapphires. Returning to Paris, Cindy Chao, the designer noted for https://codygxjvf.mycoolwiki.com/7373022/facts_about_gemstone_eternity_rings_revealed