Large Art Deco Style Prehnite & White Topaz 9K Gold Ring Size N. The setting has a beautiful Art Deco design to show off the quality of the gorgeous and fantastic 2.285 carat Australian Prehnite gemstone, it has 14 sparkling white topaz set into the shoulders. It was fully hallmarked for 9ct gold with "375", anchor for Birmingham, "DK" and date mark "h" . It contains a substantial 4.0 grams of 9ct yellow gold. Size N . It is in excellent new condition. Comes with its certificate of authenticity and the new luxury ring box pictured.