The cabochon is set within a sawtooth bezel. The stone itself measures about 18.5mm x 15mm. The ring is a size 6.5 and weighs 8.4 grams. In very good condition with some overall tarnish. I have left this as is because some people love them this way. However if you want a high shine, I can give it a buff. The stone has a couple of light scratches but difficult to notice without magnification. No makers mark and tests as sterling. Could be Mexican made. Looks great on the hand with a nice bold look.