Thank you for looking at this fabulous ring . The color is black gold and the composite of the ring has 18k gold filled , mixed part stainless steel alloy Very pretty faux, lab created green emerald Size 6 ring not adjustable ,wide band so it can fit like 5.5 depending on the slenderness of your finger sturdy glittery, cocktail ring,, statement, club wear, rave wear, night club, rhinestones, crystals, rhinestone, aurora borealis, casual, 9-5, business, dress, dinner, classy, crystal, sapphire