Logos of various materials.

[north_demon_cues]

I try to use logos of different materials according to different designs. Some completed so far. Silver,gold ,rose gold. But has anyone guessed what material the last one is?

 

[PDX]

Synthetic ruby

 

[north_demon_cues]

Synthetic ruby

No, it's not a synthetic material.

 

[Chairman]

Hmmm…that makes it interesting. Pink tourmaline can get to that color…


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[David in FL]

No, it's not a synthetic material.

Real ruby?