I will introduce you a jewel. This one is called "Tiki". The "Tiki" is a symbolic pendent which come from New Caledonia. I know this because I lived in New Caledonia 2 years. My "Tiki" is made with Gold and Onix and it's a small one. But you can also find Tikies made with Gold, Silver or precious stones.
The "Tiki" was a wooden statue, and New Caledonian people pried in front of them.
It basically represent somebody and a symbol. For me, it's the symbol of the luck but there is also Wisdom, Happiness, Strength, Tenderness, Fidelity and so on.
I chose this object because it remind me my childhood when I used to live in New Caledonia.