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A patina is the result of oxidation on the surface of coins, most often bronze or silver. If the patina is even on a coin, its value is significantly increased. Patina colors vary, from green to brown to black.

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Author: Rédaction GOLDMARKET
GOLDMARKET's editorial team is made up of precious metals experts, journalists and editors with a passion for gold and the wider economy. We also bring in specialist lawyers and experts on technical subjects relating to gold.

Based on the Avenue des Champs-Elysées, the family-owned GOLDMARKET Group, a major player in precious metals, is present throughout France and and internationally. For years, thousands of loyal customers have trusted us to sell their gold objects online or in our branches, or to invest in gold in complete security.

Our experts, skilled and passionate about their profession, will advise you and answer all your questions about precious metals. Trust and transparency are the core values of our business. They have guided our growth and development since the company was founded.

Finally, customer satisfaction is our priority, and we are committed to welcoming you in the best possible conditions. Our team will be delighted to help you achieve your financial goals and build a golden estate that's just right for you.