Middle East someplace,the whole piece is coated with solder like most filigree pieces.
There is nothing helpful on the necklace to suggest any date... sometime in the last 80 years.
Looks like they are "reproductions" of a coin cast from a mold of an original.
If you want to see the very graphic results,Google "finger ripped off by wedding ring" and look at images.
It's called a "window" in the stone........... https://www.ajsgem.com/articles/gemstone-windows-and-windowing.html
The upturned inside edge is dangerous,you have probably never seen the flesh peeled off a finger to the bone from a ring.
Poorly cut "windowed" stones and the inside of the ring looks just as dangerous as your ring.
Dragon's head spout,there seems many different ones have been made.................
Can you take closeup photos of the stones and inside of ring? Looks like they tried to gypsy set the stones,but burr set instead. The inside of...
Poorly stamped star.
The "V" in studios does tend to be wrong.
Japanese goldfish .............
https://www.925-1000.com/a_Standards.html
It can be used as "open work" jewelry which is die struck,etc. shown as fine wires and spaces.Not the typical middle eastern,etc. wire work...
The band is die struck and filigree is used for this type of metal work for bracelets,pendants,bar pins,etc.
Looks like the opal has a fat belly and part of one end was broken off.
No replies here.............. https://www.antiquers.com/threads/chinese-wooden-beads.36450/ Similar beads here................
It wasn't stamped very good,dust it with a little flour and scrape excess with a business card or something similar and it may be readable.
Spray the top with WD40 and let it soak in over night,might need a couple repeats.
Sometimes call a botanical microscope,though there are many uses...... https://m.skinnerinc.com/m/auctions/2555M/lots/5
Separate names with a comma.
