Sell a diamond: Union des Diamantaires

Do you own diamonds from the 1980s or have you inherited them, but do you really know their story? Do you know the current value of these diamonds, now nearly 40 years old? Diamantaires Paris OG helps you estimate the value of your 80s diamonds and offers to buy back your diamonds from the Union de Diamantaires at a fair price. 

History of the Union de Diamantaires

The Union de Diamantaires (UDD) was the first company specialized in diamond investment in France, in the 1970s-80s. Founded by Mr. Friedmann, it remained active for 7 years.

In 1979, as diamond certification organizations and sellers and resellers multiplied, the UDD proudly displayed its slogan "Your diamond capital at the time of choice, it's the Union de Diamantaires: a powerful organization for your security". At its peak, the UDD controlled between 70 and 80% of the rapidly expanding diamond market.

However, in the 1980s, the diamond market experienced a historic crisis. At the time, the market was still poorly regulated, allowing unscrupulous sellers to set their prices freely, backed by fake certifications, and to make colossal margins. By focusing their efforts on the same type of diamond, the 1-carat diamond, demand became too high relative to supply, and the diamond price eventually collapsed: this is known as the diamond bubble.

The diamond bubble of the 1980s caused many organizations to close their doors, starting with the UDD. In 1983, the company was ordered to file for bankruptcy along with related investment companies (Co-diamant, Média, DSB, CBP) at the Paris Commercial Court: it had liabilities of 40 to 50 million francs and 31,000 clients.

Diamantaires Paris OG buys back diamonds from the Union de Diamantaires

Today, 1980s diamonds intended for financial investment (investment diamonds) are highly sought after by diamond dealers for their high value and stable pricing. Indeed, even in times of crisis, investment diamonds maintain a stable value because the diamond industry operates completely autonomously.

Professionals are not the only ones who still own diamonds from the 1980s crash. Many people have recently inherited investment diamonds from that era and do not know what to do with them. Why not take advantage of the current good health of the diamond market and sell these diamonds? Diamantaires Paris OG offers to estimate and buy back your 80s diamonds from the Union de Diamantaires.

Thus you can submit your request for the buyback of your diamond at [email protected] or visit us without an appointment at our premises at 43 rue Beaubourg in Paris.

Furthermore, do not hesitate to contact us by phone at +33 1 48 87 23 37 if you have any questions about the origin or value of your diamond.

Discover the real value of your 80s diamonds with the expertise of Diamantaires Paris OG. We specialize in the appraisal and buyback of diamonds from the Union de Diamantaires, guaranteeing an accurate evaluation and a fair price. Whether you inherited these diamonds or simply want to understand their current value, our team is here to guide you. Take advantage of our free appraisal service and turn your historical diamonds into a lucrative opportunity. At Diamantaires Paris OG, each diamond is a piece of history, and we are committed to offering you the best sales experience.

–> Appraise a diamond certified by the public service 

–> Appraise a CIBJO diamond

At Diamantaires Paris OG, we specialize in the appraisal and buyback of diamonds, including those from the Union de Diamantaires. Our expertise extends to a wide range of precious stones, offering an accurate evaluation and a fair price for your historical diamonds. If you own 80s diamonds or inherited pieces, we help you understand their current value and turn them into a lucrative opportunity.

For those who own family jewelry and seek advice on how best to manage it, our page on what to do with inherited jewelry offers valuable information. Additionally, our expertise in jewelry from Place Vendôme is detailed on our page dedicated to our expertise in jewelry from Place Vendôme, where we share our unique know-how in appraising and selling fine jewelry.

For those looking to sell high-end jewelry pieces, we offer specialized services for prestigious brands such as Van Cleef & Arpels. Our pages dedicated to the Couture collection, Lotus, Olympia, and Perlée offer an overview of our ability to value these exceptional creations.

Furthermore, for those looking for alternatives to traditional auction houses to sell their jewelry, we offer advantageous options. Our page Our alternative to Sotheby's for selling jewelry illustrates how we can offer a more personalized and efficient sales experience.

At Diamantaires Paris OG, every client is unique, and every piece of jewelry tells a story. Our mission is to accompany you in the valorization of these precious narratives, ensuring a fair and profitable sale. Visit our home page to discover the extent of our services and the excellence of our expertise.

The Union de Diamantaires (UDD) was the first company specialized in diamond investment in France in the 1970s-80s. It played a major role in the diamond market but had to close following the diamond market crisis in the 1980s.

Yes, Diamantaire Paris OG buys 80s diamonds from the Union de Diamantaires. They are prized for their high value and stable pricing.

You can send a buyback request to [email protected] or visit us without an appointment at 43 rue Beaubourg, 75003 Paris. A free and confidential appraisal is available.

Diamantaires Paris OG offers a free and accurate appraisal of your historical diamonds, as well as assistance in understanding their current value and selling them at a fair price.

Yes, for any questions about the origin or value of your diamond, you can contact Diamantaire Paris by phone at +33 1 48 87 23 37.

Also discover where to sell a diamond ring