Vintage / antique Chinese real glass cloisonne delicate band ring

Vintage or antique Chinese cloisonne band ring. Size 6.5-6.75. In excellent condition. Real cloisonne items are valuable and collectible as they require a lot of intricate hand work. First, the real glass powder of various colors is melted into a metal base to form a desired pattern. Then thin metal wires (brass, real gold, or real silver) are hammered into the surface to accentuate the colors and design patterns. Finally, the item has to be hand polished to perfection.