Thank you for looking at this fabulous ring . The color is black gun metal and the composite of the ring has 18 k gold filled mixed part stainless steel alloy .Very pretty faux amethyst . Great for the holidays.. . Fits a size 8.75, not adjustable , sturdy glittery, cocktail ring, Christmas, statement, club wear, rave wear, night club, rhinestones, crystals, purple 18kt 18k, filigree, open work, boho, dinner ring, 9-5, business, casual