Syblle Jargstort says in her book “Baubles, Buttons and Beads” (Schiffer) that saphiret glass was created in the 19th century. The 2 tone effect – varying from brick red to sapphire blue – was made by mixing gold to a basic sapphire blue glass. She gives examples from Gablonz up to the 1930’s. It was expensive to make. Diane de Mango – illusionjewels.com – says that later stones – which she calls sapharine – were made in Germany. They are not as distinctive as the older ones. The examples in the picture are from my own collection and the dates vary – I particularly like the necklace. Saphiret stones are difficult to photograph – do look at other examples on the internet to become familiar with the difference in colour in the older and later stones.
