National Geographic Gem Advent Calendar. Celebrate the season with science and the national geographic 2024 gemstone collection advent calendar! Up to 3% cash back from the 1st to the 24th of december, kids can open a beautiful new gemstone to add to their collection, including a collection bag and magnifying glass to observe.

Celebrate the season with science and the national geographic 2024 gemstone collection advent calendar! Each day of december as christmas approaches, kids can open a gorgeous.