Editor's note: Lady Diana Spencer fixed the sapphire firmly in the public consciousness when she chose a sapphire engagement ring in 1981. The trend of sapphire rings for brides is still going strong, and with good reason: the birthstone of September babies combines beautifully with absolutely everything. If you’re as crazy about this gemstone as we are, you’re going to go nuts for our Sapphire wallpaper collection! Get yours today.