Emerald Expositions Events Inc. in San Juan Capistrano is slated to raise about $300 million in its initial public offering, according to documents filed with the Securities and Exchange Commission.

Emeralds have, for centuries, captivated empires, royals, and the generally well-heeled and powerful. Egyptian queen Cleopatra was so enamored with the stone that she would carve her likeness into the ...

The May birthstone — emerald — is considered one of the three most desirable colored gemstones available. Alongside rubies and sapphires, emeralds have been mined and used by humans for decoration for ...