Need Micheal Beaudry necklace insight

[nala]

I don’t know much about this brand and google image search has not yielded the exact results of this necklace.
Wondering if any of you can give me insight. Does this hallmark look authentic?

 

[marymm]

I don't know about the hallmark but the platinum version of this cross at Pearlman's looks virtually identical - sadly that listing does not include a photo of the backside ... https://www.pearlmansjewelers.com/jewelry-designers/beaudry-jewelry/necklaces/10B3/