But if you need some cash in the short term, pawn that bauble. You're better off with an estate jeweler who deals with those kinds of items. If, however, you want to hock your Swatch watch, visit a pawnbroker who trades in more modest merchandise. Have reasonable expectations. Sentimental value doesn't count here.
Jewelry is just a commodity, and price is determined by the market value.
Some items hold their value better than others. Co. But you may get less than half the original purchase price for a diamond because there is such a markup at the retail level. Some people expect to get more than they paid originally. That won't happen unless it's a true antique. If you still have the original receipt, box, warranty, accessories or anything else that goes with a piece, bring it along.