The metal on this bracelet is probably brass. It looks more like a brushed brass than anything else. The front stone on this is black. I always think a black stone is onyx. And the flower stones are definitely opal. They just look like opals. And the little crystals are dark cognac color (because I really didn't want to call them brown. And they aren't brown. They're cognac. And also aurora borealis, but aurora borealis wouldn't fit in the title.). THE FIRST SEVEN PHOTOS ARE OF THIS BANGLE. THE LAST FOUR PHOTOS ARE OF 5 of THE HEIDI DAUS HINGED BRACELETS I'M SELLING. I think I originally had/have 8 total. This listing is just for one of them. This particular one. The others can be found in other listings. This bangle bracelet measure approximately 8" in circumference. This bangle is tapered from front to back. Some of the ones I'm selling are not. It's about 5/8" wide at the front and about 1/4" at the back, where the open diamond-shaped pattern is. It's a very slight taper. The spring hinge totally works. The mannequin hand is used for display only is not included and not for sale.