How much is my old pearl necklace worth?

Pearl value depends first on whether the pearls are natural, cultured or imitation. Most strands in family jewelry boxes are either cultured pearls or imitations. Natural pearls, which formed without human help, are rare and valuable but need a lab test to confirm.

For cultured pearls, value depends on size, luster, surface quality, shape, color and how well the pearls match along the strand. Bright, mirror-like luster and round, clean pearls bring more. Older Akoya strands in smaller sizes are common and often sell for modest amounts. Larger South Sea and Tahitian pearls are generally worth more. The clasp matters too; a 14K or 18K gold clasp, or one with diamonds, adds value, and a well-known maker's clasp can add interest.

Condition is important. Worn nacre, discolored pearls, chips and a stretched or dirty string lower value. Restringing is routine and usually worth doing before selling better strands.

To learn what yours is worth, start with a jeweler who works with pearls or an appraiser. A gemological lab can confirm natural pearls if the strand looks promising.