These cufflinks are optimistic! Half silver and half emerald-turquoise glass which color-shifts as you turn your wrist. You can see two of its colors in the second photo just from the slight difference in the angle of the cufflinks from the camera.The cufflinks are 5/8 inch square on sturdy silver-plated backs. I fire each set twice, grinding them on a diamond lap wheel between the firings for crisper edges. They arrive in a black velvet and white satin presentation box.