This London Blue Topaz Necklace is a good argument for wearing more color, with London blue topaz at the center of the design. London Blue Topaz Necklace has the kind of handmade character Kirsten Rose does well, distinctive without feeling fussy. London Blue Topaz Necklace brings together gold fill, natural stone, and topaz and the necklace silhouette for an easygoing piece with plenty of detail.