TRE D is a family-rooted gold chain manufacturer based in Arezzo, Italy. The company was established in 1977 under the 288 AR hallmark, building on experience in the local goldworking sector dating to 1958, when its current owner opened a jewellery workshop. Today, TRE D produces gold chains using both machine and handcrafting techniques, alongside semi-finished chains and complete bracelets and necklaces. Its products are available in different gold finenesses, lengths and colours.

The catalogue features a wide range of chain styles, including Venetian, foxtail, Singapore, rolo, Forzatina, Grumetta and flat or oval designs, as well as several patterned and alternating-link variations. TRE D describes itself as a precious-metalworking enterprise with in-house design and manufacture of the machinery used in production. This approach supports ongoing improvements in product quality and production costs. The company also highlights its team’s availability and reliability, along with product quality and prompt, rapid deliveries. These strengths have helped establish TRE D as a point of reference in the Italian gold chain industry and an active supplier to the international jewellery market.