The stone appears to be dyed travertine and the made in Mexico is stamped.
It appears to be a type of Luckenbooth brooch ,not sure where the witch would apply.
Guess you weren't looking in the right place,"Zuni inlay" in Google images shows hundreds of flush mount inlay.
This is another die stamped filigree ring,there is no "cutting out" and no applied wires.
I see nothing wrong with the texture,many were textured and mill grained like around the sapphire on the edges and "filigree" and inside...
Looks like it was die stamped and the stone may be a Yogo sapphire.
Looks like the pavilion is full of bubbles.
It may have been a student's class project needing multiple steps,wax carving,textures,mold making,casting,etc. There are evil sadistic...
The chart only applies to brilliant cut round diamonds,it does not apply to the OP's since it is not a round brilliant.
It looks like a "fish eye/windowed" synthetic sapphire and probably automated machine cut.
ginseng ?
Owyhee Picture Jasper http://www.skyesgems.com/aasale/Items/2011/08-20/rough_jasper-owyhee-cripple-creek8-20_1.htm
Owyhee Picture Jasper
Moscow mule?
Looks like someone pulled it out of the reject/scrap bin.
Sugilite really wasn't available in the states until after 1975,the piece was probably made after that year.
Soft tooth brush and baking soda made into a paste.
Do you have a good closeup photo of the medallion on the tankard?The information photos from the booklet have as much nonsense as the Wikipedia...
The world is big... pick a location.
The hoops are poorly cast and basically semi finished with porosity.I guess you didn't know that precious metal objects are not required to be...
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