That is an interesting bracelet - would need to see more photos of the bracelet to provide an approximate date. A marriage of two overlapping periods or 19th c victorian mourning jewelry with the inclusion of freshwater pearls around the central stone. Can you tell what the central stone is made from? In the photo the color appears black and lustrous. Are there any marking anywhere? What are the clear stones? Is the white metal silver? Lots of questions for you:-)
