Sorting and Recycling of Glass

Preciosa has developed a sophisticated sorting and recycling system designed to effectively reuse excluded batches of stones and tiny glass shards collected throughout the production process.

Preciosa crystals serve as a worldwide industry benchmark of quality. To uphold this standard of excellence, we submit our products to a series of stringent, in-house quality control procedures that are engineered to detect any flaws or anomalies. Stones with even the slightest defect or variation in color are immediately removed from the process and, while the percentage of error in production is low, simple disposal of defective glass is difficult and unsustainable.

Recyled materials account for 5-20% of the total volume of every new batch of glass terefore every Preciosa crystal is at least partially made of recycled ingredients.

To address this issue, Preciosa has over the past decade developed a sophisticated sorting and recycling system designed to effectively reuse these excluded batches of stones and tiny glass shards collected throughout the production process. These small pieces of glass, of which Preciosa recognizes more than 3,000 unique shades, are meticulously sorted and added as raw ingredients back into new batches before the melting process. As a result, recyled materials account for 5-20% of the total volume of every new batch of glass Preciosa makes. This means that every Preciosa crystal is at least partially made of recycled ingredients. Transparent colors contain the highest percentage of recycled glass, while highly saturated and opaque colors contain the least.