The inscription “585” found on jewelry indicates the gold content of the piece. This numerical marking signifies that the item is composed of 58.5% pure gold, with the remaining 41.5% consisting of other metals. These additional metals are alloyed with the gold to enhance its durability and alter its color.
This standard offers a balance between the allure of gold and the practical considerations of wear and tear. Pure gold, being a soft metal, is easily damaged. Alloying it strengthens the final product, making it suitable for everyday use. Historically, different cultures have adopted various gold standards, with 585 becoming a prevalent indicator of quality in many regions.
