Demarge is a specialised jewellery manufacturing and design company based in Brisbane Australia. Owner and jeweller, Donna Roberts has been making jewellery since 1992, and has based a business around making custom an commissioned jewellery for her clients. From choosing that special diamond or gemstone, to designing that original piece for you or your loved one. We talk face to face and create a piece just for you. Creating something special with meaning to be loved always.