Welcome Willcpfc. She is very pretty; by convention generally considered to be the goddess Flora. Italian lava & shows signs of being a molded...
More of a loving cup than a bowl.
If the pearls pass the tooth test, I see no reason they would not be given a 14K clasp.
All three are helmet shell, I would put them to the 30s - 40s, Italian settings. Last one is goddess Diana. Mark on the first one is likely to...
Looks like a natural material to me. What makes you say this?
'I will have that' is always powerful.
Cufflink is a reasonable guess. Maybe one got lost & this was a way to salvage the other. Best guess is the cameo is glass, with figure glued...
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