An emerald and diamond tiara, circa 1900, formerly in the collection of Princess Katharina Henckel von Donnersmarck, sold for $12.7 million at Sotheby’s Magnificent and Noble Jewels Sale, held ...

The “toi et moi” style, which is French for “you and me” is a personalized bauble from Ring Concierge ($998) with an emerald-shaped stone paired with a pear-shaped stone set on a gold band. 9 ...