The name Beryl is a girl's name of Greek origin meaning "sea-green jewel". Beryl and is often added to lists like Unique Girl Names: Unusual and Rare and discussed in our forums with posts like "Fresh, Airy Middle?".
From the experts:
Dated British favorite that never caught on in this country, where Jade remains the green gem of choice. Interesting namesakes: British writer Beryl Bainbridge and British aviatrix Beryl Markham.