Here is a really stunning Large Vivid London Blue Topaz & 9k White Gold Ring Size N. It is an amazing ring, the large blue topaz gemstone looks amazing. It is fully hallmarked for 9ct gold with "375", the anchor for Birmingham and the makers mark "GTV". It weighs a really substantial 4.0 grams. Size N. It is in really excellent new condition. Comes with a new luxury ring box.