This pair of modern Imperial Jasper Heart Earrings have been crafted with Imperial jasper, copper, and 14K gold-plating. Please note that the exact pattern and colors of the natural stones in each piece may vary. To prevent deterioration, it is recommended to avoid wearing the earrings during physical activity, as sweat can interact with the jewelry to form silver chloride and copper sulfide. Measurements: Length: 1.4 in, Weight: 0.3 oz (8 g). Imported. Free shipping. Expected delivery: 8-12 days.