This is a black English Derbyshire marble pietra dura candlestick or single light candle holder, decorated with a mosaic of white flower hardstones and green malachite leaves. It was probably originally part of a larger desk set ensemble from the Grand Tour era, mid 19th century. It is 4 1/4" tall and 4 1/2" wide. There is a minor chip on the rim of the base. SC.