You've inherited multiple pieces. Some have sentimental meaning. Some might be valuable. Some you'll never wear. You need to decide what to do with each one — but the decision isn't the same for every piece.
Keep everything that belonged to close family. Sell the rest.
"For each piece: does it carry meaning you'd miss, would you actually wear it, or could the money serve you better?"
For pieces you keep: clean gently if safe, store properly, and consider documenting for insurance. Wearing them honors the memory they carry.
Decide piece by piece. Consider: your emotional attachment, whether you would actually wear it, and its potential monetary value. Pieces with high sentimental value and low market value are easy keeps. Pieces with low sentiment and high value may be worth selling. The hardest decisions involve high sentiment and high value — take your time with those.
Ask yourself: if this piece were lost tomorrow, would you be genuinely sad? If yes, keep it. If you're keeping it out of guilt or obligation, consider whether another family member would treasure it more — or whether the memory it represents can be honored another way.
For most common pieces, market value doesn't appreciate significantly over time. If you don't wear a piece and it has monetary value, selling now and using the money purposefully may serve you better than decades of storage. Exceptional pieces — signed designer, important gemstones, historical significance — may justify holding. Most pieces don't fit this category.