Coral Necklace Signed CM or MC ?

Hello,

I hope everyone is healthy and doing well !
I think this necklace it's coral, but I'm never sure when it comes to pink coral.. does anybody recognize the "signature" MC or CM (not marked, but they test as sterling)? As always, thank you so much !

 

It looks like angel skin coral We need close-ups of those beads

 

The pearls are freshwater; they're too cheap these days to fake them. The white coral is most likely just that, and the peachy coral is real too. No idea who MC was or is; the piece is too new. Navajo ? Likely not; it's made all wrong.

 

Thank you so much!

 

They look too dark for angel skin coral to my eye. Look for concentric circles, they may be shell.

 

I don't see them.. but maybe I don't know where or how to look ?
Thank you !