Key takeaways
- Check stamps first: 10K, 14K, 18K, 585, 750, 925, and "Sterling" mean real precious metal.
- "GP", "GF", "HGE", and "RGP" mean plated or filled, which is worth far less.
- Gold and silver have a floor value based on weight and current metal prices.
- Signed costume jewelry (Trifari, Eisenberg, Miriam Haskell) can be collectible.
Read the hallmarks
Look inside rings, on clasps, and on the backs of pendants with a magnifier. Gold karat marks (10K/417, 14K/585, 18K/750) and silver marks (925, Sterling) indicate solid precious metal. Plated marks include GP, GE, HGE, RGP, and GF (gold-filled). Real gold and silver are not magnetic, though a magnet test alone isn't proof.
Melt value is the floor
Scrap gold and silver value equals weight × purity × the current spot price, minus the buyer's margin. Weigh pieces in grams, and get more than one quote; buyers' offers vary widely. Well-designed or signed pieces are often worth more as jewelry than as scrap.
Gemstones need an expert
Diamonds and colored stones can't be valued reliably from a photo. A GIA-trained gemologist or certified appraiser can identify stones and grade them. Ask for an independent appraisal, not one from a store that wants to buy the piece.
Costume jewelry worth a lookup
- Signed pieces: Trifari, Coro, Eisenberg, Miriam Haskell, Weiss, Schiaparelli.
- Bakelite and early plastics, especially carved bangles.
- Mid-century enamel and rhinestone brooches in good condition.
Frequently asked questions
How do I tell if my jewelry is real gold?
Look for a karat stamp (10K, 14K, 18K, or 417/585/750). Marks such as GP, GF, or HGE mean plated or filled. A jeweler can do an acid or electronic test to confirm.
Should I sell gold jewelry for scrap?
Get the melt value first and compare multiple buyers. Signed, antique, or designer pieces may be worth more sold as jewelry.
Prices and tips in this guide are general guidance for U.S. sellers based on typical resale markets. They are not a certified appraisal or a guarantee of what an item will sell for. For insurance, legal, tax, or high-value items, consult a qualified appraiser.