How do you know if an antique piece of jewelry is valuable?
Perhaps you have some antique jewelry at home. A ring passed down from your grandmother, or a necklace given to you by an aunt. Maybe you're a fan of flea markets. But you don't know how to determine the value of the vintage jewelry on offer. Today, we're sharing a few tips to help you get an idea of the worth of an antique piece .
Article updated on October 23, 2025
Summary
- Simple tips for estimating the value of an antique piece of jewelry
- The simplest solution: an expert appraisal of antique jewelry
Besides their precious metal content and the presence of precious or semi-precious stones, the value of antique jewelry is also determined by a whole host of factors impossible for the untrained eye to discern. If you have vintage pieces in your jewelry box that you would like to have appraised, Miller offers its extensive knowledge of the antique and pre-owned jewelry market since 1989. Send us photos for an online appraisal within 24 hours .
Simple tips for estimating the value of an antique piece of jewelry
Here are some simple tips to help you estimate the value of antique jewelry yourself.
Punching
Hallmarking , a mark left on the jewelry by the jeweler, provides valuable information about the piece, including its creator and its precious metal content (for example, 18K means 18-carat gold).
It can be found on the inside of a vintage ring or antique bracelet, on the clasp of a long necklace, etc. Major brands like Cartier or Tiffany & Co. still use hallmarks. See, in particular, this example of a Chanel hallmark.
A Boivin bracelet may have a hallmark from a renowned workshop, for example Dumont & Compagnie.
Magnet test
Take a magnet and place it near your antique jewelry. If it's costume jewelry, the magnet will attract it . If it's valuable, it won't.
Acid test
By rubbing the jewelry on an abrasive material such as a stone and applying acid, you can determine the gold, silver, or platinum content of an antique piece. Kits are available online for doing this yourself at home, but be careful when handling it!
How to determine if it is Are they real diamonds ? There are several simple tricks to tell if the stones in antique earrings or a vintage brooch are diamonds or not. The magnifying glass test, which should reveal imperfections, is one of them.
The simplest solution: an expert appraisal of antique jewelry
While there are a few simple methods to get an idea of the value of antique jewelry , it's a vast field that only experts truly master. Besides the intrinsic value of the piece, which is determined by the metals and stones used, many other factors come into play.
- When was the piece of jewelry made?
- How rare is it?
- Which house or craftsman made it?
- What is the market demand …
All these parameters play an important role in the evaluation of an antique piece of jewelry .
You can, of course, do your own research to try to determine the period of a piece of jewelry, its origin, and attempt to estimate its price based on similar pieces. But if you wish to sell an antique piece of jewelry easily and without hassle, you can simply request an appraisal from Miller. We offer you two options:
- Online pre-assessment : no need to travel. Simply send us photos to receive an initial price estimate by email within 24 hours.
- In-store appraisal : Meet with a jewelry expert at our store at 233 rue Saint-Honoré in Paris (1st arrondissement) to receive an immediate appraisal, which serves as a purchase offer.
Do you wish to part with a piece of jewelry or sell a luxury watch ? You have the following options:
- Leave immediately with the amount offered to you ( immediate purchase )
- Receive your payment when the jewelry is sold ( consignment sale , for a higher price)
Use the form on our appraisal request page to receive an online offer to buy antique or second-hand jewelry and quickly get an estimate of your vintage jewelry in Paris by clicking the button above!
