Examining the Hallmarks, it's hard to see. I se a "99" that I guess was the year it was made. There are two sets of stamps I am still trying to figure who made this. Could be local, could be from Hong Kong. More digging, A.I. can't help me here. I may have to take it down to a Chinese jewelry shop in the old Chinatown.

That gif was one of a dozen video shots (2018), the only one with a decent smile. 😁

!PIMP
!BBH