What exactly is 925 Silver or Sterling Silver? The terms are interchangeable, signifying that the item consists of 92.5% silver and 7.5% other metals. Why not use 100% silver, you may wonder? Pure Silver, like Pure Gold, is too soft for practical use. In medieval Europe, silversmiths began blending silver with other metals to enhance its strength. Over time, they determined that a composition of 92.5% silver and 7.5% other metals strikes the ideal balance, preserving silver's desirable traits while boosting its durability. In the 14th century, England even enacted legislation to standardize this ratio.

The 925 standard gradually gained universal acceptance, evolving into a de facto global benchmark for high-quality silver. This standardized system ensures consumers can confidently recognize and trust the quality of silver in jewellery and other items. Every item from Nistra is crafted with 925 silver, each piece bearing a stamped 925 to denote its purity.