Detailed Info on Jewelry

This jewelry was my mom’s who collected fine jewelry but rarely wore any of it. She took tags off & kept in an armoire, cases or non-tarnish bags so all r in “Like New” condition but no info. I’m no expert so I’ve researched stones, makers marks, metal (test kit), etc. (mistakes r possible tho doubtful) I’ve under priced the items as I don’t know original cost. Value is determined by what similar/same items sell for I know mom bought only quality genuine gemstones, from reputable sellers.