It's too hard to see how it was done,it depends on the base metal.A few spots look like acid etching a plated material.It is not Bidri ware since...
The large stone looks like Rose De France amethyst,the round stones appear to be pyrope garnet.
What color are the dark round stones?
Hobbyist/artisan using a shot plate for the Saturn part,many people using them.... https://www.buffalorutlandcompany.com/store/c3/Shot_Plates.html
The bracelet doesn't look like nice quality.
Looks like it's Masonic.... https://www.google.com/search?client=firefox-b-1-d&q=ufecm
Possibly synthetic alexandrite,would need to be tested.
The large square looks like tourmalinated quartz.Probably other good stones in the batch also.
The stone was easy,dating when the pin was attached would be questionable.
Real
The Japanese used a variety of patinas on copper and other metals,one list in link....
What is the spot on the handle? Is the handle aluminum? Looks like a hand made "boot"knife,maybe from someone's back yard forge.
Chinese box clasp,they are made with many different symbols......
Pinterest doesn't like me,but photo of pendant.... Jørgen Jensen Suspended Snowflake Pendant
Looks like it is legal in 11 states.... https://www.northamericanwhitetail.com/editorial/deermanagement_naw_debate_1009/263851
Looks like an ink stone.
It depends on their definition of hand carved,the piece was probably hand held and a powered wheel used to carve the piece.
Looks like a single stamp,the groove is too deep for a complete stamp.
Is your gemstone tester dead again?
There were hundreds of thousands razor blades imported from the UK and Germany,usually the handles were assembled here.see link with names....
Separate names with a comma.
