The phrase "quality sterling" refers to something that is of high value and excellent quality. It typically refers to objects made from sterling silver, which is a highly valued and durable material. Full definition
Crafted from the finest quality sterling silver, we will create a personalized design with any name or word in this edgy and fashion - forward font. (onecklace.com)
We also use high quality sterling silver and excellent customer service. (etsy.com)
These earrings are made from high - quality sterling silver plated in gold and are the perfect accent to any outfit. (sterlingforever.com)