Birthstone (noun)

A precious stone that is associated with the birth month of a person and is said to bring good luck or provide protection.

Origin:

Early 20th century: from birth + stone.

Examples:

1. The birthstone for January is garnet, while the birthstone for February is amethyst.
2. Many people choose to wear jewelry featuring their birthstone as a way to celebrate their birth month.
3. The concept of birthstones is said to date back to ancient civilizations, who believed that different stones had special properties.
4. Birthstones are often given as gifts for special occasions, such as birthdays and anniversaries.
5. There are many different birthstone charts, with different stones assigned to each month, so it's important to check which chart you are using when selecting a birthstone.