This sterling silver Bleue Burnham The Burnham sapphire signet ring is handmade in London. It features a circular shape, engraved texture, polished finish and oval cut clear sapphire surrounded by 10 round cut multicoloured stones. British hallmarks stamped on the interior edge complete this piece. This Bleue Burnham ring is inspired by a piece that the designer's grandmother used to wear. So, it's only a matter of time before it becomes part of the family (AKA your jewellery lineup).