These 20 Handmade Deep Turquoise Glass Rings were imported from Asia about 15 years ago. Each opaque glass ring measures between 0.75" (19mm) and 0.875" (22mm) in diameter and between 0.0625" (2mm) and 0.125" (3mm) in thickness Because these rings are handmade, they are not perfectly round and some do not have an even thickness. Maker is unknown. These Handmade Deep Turquoise Glass Ring are in very good condition with no damage or wear. Ideal for jewelry-making or art projects.