Necklace Meaning

[Eritogema]

Hello, I am wondering what this necklace means, any help would be greatly appreciated. Thank you!

 

[nice gaijin]

Looks like 寿, kotobuki, an all-around auspicious sign about happiness and longevity, often used for congratulations as well.

The proportions are off enough for me to guess that the jeweler wasn't familiar with kanji.