If you are intent on selling there are many options available. If you settle for a pawnshop your item will generally be valued based on its weight not its artistic value.
An auction house offers the promise of an emotional bidding war but when the hammer comes down the price voiced after “SOLD”, is not the price you take home. Your portion is the amount left after the buyer and seller premiums, which combined can be over 35%!
A jeweler is another option to consider but their primary business is to sell. Determining value and buying items is only a small part of their business. If you are offered a set price, you have to wonder if that price is based on knowledge greater than just the local market.
Many years ago we called upon an elderly woman who wished to sell her valuables. She had been a long time customer and had acquired several valuable pieces. We reviewed her items and agreed upon a price. As we were packing up, we asked if she might have anything else to appraise. She said "No," but then thought again. She said her mother had been in China in the 1930’s and had come with some knick knacks that couldn’t be worth much.
We asked if we could see them. She assured us they weren’t worth our time. We said, why not let us have a look anyways. Reluctantly, she agreed. When she opened the box we realized these were jade bracelets worth well over $30,000.