Adami & Martucci Sterling Silver Rose Gold Vermeil Cocktail Ring Sz 8.5

Adam and Martucci large statement cocktail ring. Vermeil (rose gold over sterling silver). Gorgeous blue stone. Love the setting of this ring. Size. I believe this is an agate, I used the presidium and it tested as a gemstone well above glass. May be blue chalcedony but a blue gemstone regardless. I love the stone, it’s so unique! In like new condition. From my research this is a small jewelry designer in Europe, I think Italy. I found this brand on a few European jewelry websites but not much information besides that and could not find a website for this jewelry maker directly. No box, no dust bag.