A young Franklin Delano Roosevelt proposed to his future wife, Eleanor, with a Tiffany ring in 1904. is one of the most prominent purveyors of luxury goods in the United States, and has long been an important arbiter of style in the design of diamond engagement rings. Sapphire is the birthstone for September and the gemstone which commemorates the 5th and 45th wedding anniversaries.Tiffany & Co.

Some rare sapphires display the phenomenon called “colour change”, in the most usual occurrence these sapphires appear blue in natural or even fluorescent lighting and can change to purple under alternative lighting such as incandescent. The amounts of these chemical elements present in sapphires determine its colour, and even when adjusted ever so slightly can change drastically. Other coloured sapphires, for example green sapphires, also have hints of iron and titanium, as well as copper. For example, blue sapphires, in their most classic shade of royal blue, get their distinct colour from the traces of iron and titanium.

Sapphire Coloursīlue sapphires are certainly the most well-known colour variety of sapphires, however, sapphires are not only blue, in fact they come in almost every colour of the rainbow: pink, yellow, orange, peach, and violet colours to name a few. Corundum crystals in their purest form are transparent, it is the traces of natural chemical elements that alter their hue. Now used commonly in engagement rings, this belief has become a popular tradition. Referred to as the ultimate blue gemstone, sapphires are said to represent honesty, loyalty, purity and trust.

Pink sapphire necklace