Pearl

Pearl comes directly from the gemstone's name, which entered English through Old French from Latin, ultimately referring to the smooth, lustrous gem that forms naturally inside oysters and other mollusks. It became a popular given name in the 19th century, part of a wave of jewel names alongside Ruby and Opal.

Pearl carries a soft, luminous elegance — a name that suits a pet with a pale or iridescent coat, or simply one who feels like a rare and treasured find.

Etymology & pronunciation from Wiktionary (CC BY-SA 4.0).