An exquisite Victorian blue sapphire and diamond necklace in a fitted box circa 1880 and produced by The Diamond Merchants Jewellers CO. of 138 New Bond Street, London.  This perfect condition piece has stood the test of time and is as feminine and lovely today as it was when it was produced at the height of the British Empire while Sir William Gladstone was Prime Minister and Queen Victoria ruled the throne. The lovely old mine cut diamond at the bottom of this necklaces suspension system is nearly 4 carats and the oval sapphire which serves as it's focal point is most likely of Cashmere origin and has a perfectly distributed blue.