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3 Tips to Tell What Your Jewelry Is Worth

Whether you’re a self-purchasing collector, a fortunate gift recipient or a family jewels inheritor, your jewelry box can be full of surprises. Gem-encrusted jewelry we suspect could be very valuable may fall flat, while a simple gold chain may be worth hundreds.

Here are 3 key ways to determine the value of your items

It can be difficult to differentiate between costume and fine jewelry

Identify the Material: Is it Fine or Costume?

It can be difficult to distinguish between fine jewelry and costume jewelry. But the difference can be huge when it comes to the worth of your items. Here are three ways to determine whether your jewelry is fine or costume.

1. Weigh the Item

The purity and weight of precious metals, such as gold and platinum, have a profound impact on the jewelry’s worth. Purity is particularly significant when you’re examining pieces like chains and bangles. Gold, silver and platinum are heavier metals than non-precious metals used in costume jewelry, like brass and pewter, meaning that fine jewelry will typically weigh more than costume jewelry. Solid gold and platinum items are especially heavy.

2. Look for Stamps and Hallmarks

If a piece of jewelry is made with valuable precious metals it is usually marked on the item itself.  Unless the markings have either been worn off over the years or cut out as a result of sizing, all fine jewelry must have some sort of stamp. Stamps and hallmarks are typically located on the inside of a ring or bracelet, the post of an earring or the clasp on a chain. If the item is stamped, it generally lists the metal content or purity of the alloy. Other markings may include a designer’s signature, manufacturer logo and possibly the country of origin.

Especially in-demand maker’s marks include: Tiffany & Co., David Yurman, Cartier and Van Cleef & Arpels. These stamped hallmarks can provide a clue as to its identity and value.

Some common stamps you’ll see on fine jewelry include:

  • Gold: 22K, 18K, 14K, 10K, 916, 750, 585 and 417
  • Platinum: 950, 900, Platinum, PLAT, PT 10% Iridium
  • Silver: 925, 900, 800, Silver, Sterling

3. Search for Metal Coating

Colorful earrings in various shapes and sizes, adorned with sparkling gemstones, arranged on a pink background.

Costume jewelry is rarely constructed out of solid metals. Instead, these pieces are often made from a non-precious base, such as copper, aluminum or brass. These metals are then coated in either silver or gold plating. If you see a darker or silvery color showing through parts of a gold chain or ring or if parts are discolored or flaking off – this is likely a gold-plated item and is therefore costume jewelry.

Consult the Experts at Diamond Banc

When in doubt, we are always here to help! Diamond Banc is happy to help you sort through your jewelry box to evaluate the value of your items. Give us a call today at 813-609-4331 for a private, in-office, appointment so we can assess your jewelry in person. There is never any obligation to sell your jewelry and Diamond Banc pays some of the highest prices in the nation! We even take your BROKEN jewelry.

You can start the process online or visit one of our nationwide locations today!

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Jodi Hudson, Director of Diamond Banc of Tampa About the Author

Jodi Hudson

Jodi Hudson is the Director of Diamond Banc’s Tampa office and has been a driving force behind its success since day one. As a founding leader of the Tampa market, she has built a reputation for delivering a highly professional, discreet, and client-focused experience—helping clients confidently access the liquidity their fine jewelry and luxury watches hold.

With decades of experience in the luxury jewelry industry, Jodi offers clients an unmatched level of expertise. As a Graduate Gemologist with a background that includes leadership roles at Tiffany & Co., fine jewelry appraisal firms, and high-volume luxury retail operations, she brings a deep understanding of value, market demand, and how to maximize each client’s outcome.

Clients working with Jodi benefit from her ability to clearly explain their options—whether selling, leveraging, or consigning—while ensuring they receive the strongest possible offer. Her consultative approach, combined with her commitment to transparency and discretion, creates a comfortable environment where clients feel informed, respected, and confident in their decisions. Jodi’s leadership and expertise make her a trusted advisor and a cornerstone of Diamond Banc’s client experience in Tampa.

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