7.62 grams. They are each clearly marked for 835 fine silver and signed by the designer with their initial on the cuff fittings. The fine silver cufflink faces each measure 3/4" long by 9/16" wide (19mm x 15mm). Vermeil fine gold finish to the sterling silver Green stones are synthetic green spinel SUPER COOL!! MAKE OFFER! The photos form part of the description. Like all colored stones there is a color variation that occurs in different lighting conditions both inside but also outside, even the time of day can make the color of a stone appear a little different. We do our best to show colors as we see them. Color perception is highly individual and some people can perceive more colors than others, also colors can appear somewhat different on different screens and devices due to variations in screen hardware and device display settings.