This season, the COS jewellery designers were inspired by semi-precious stones and the ideology of their symbolism. This dainty pinky ring is made from silver-plated recycled brass and features an organic-cut setting that's punctuated with precisely cut clear and smoky quartz that will glisten as they catch the light. 

• Brass is a versatile material that can be recycled numerous times without losing any of its properties 

90% Recycled brass, 10% Semi-precious stone