UNKNOWN KRISTALUXUS BUST - NEED HELP IDENTIFYING AGE

Hello Glass Community Experts : )) -
I inherited a Glass Bust of what appears to be "David", it is very heavy. There is a Kristaluxus (Monterey Mexico) Provenance sticker & it is 10 1/2 inches tall x 7 inches wide. However, when I have asked AI it's value or any other information, AI cannot locate anything similar to it.
If anyone can assist me with further information I would be incredibly grateful!
I do know that my Grandfather was an International Financier & engaged regularly with Dignataries around the World, possibly one of kind piece?

Thank you for any help ~