Antique Victorian Rose Yellow Gold Ball Pendant

Victorian textured & high detail ball pendant. Never tested, but I am assuming it has at least some low grade (9ct, maybe higher?) gold or at the very least gold fill in it. This looks like one of those mason balls, but it does not open. This has a rose gold look cap with trim under the other gold rope work at the top, and it looks like Sterling or some grade of silver accents. Pendant drop is about 7/8”, gold filled chain is 18”. Stunning In hand. RARE.