Sapphire jewelry. They also may be created synthetically in laboratories for industrial or decorative purposes in large crystal boules. Because of the remarkable hardness of sapphires – 9 on the Mohs scale (the third hardest mineral, after diamond at 10 and moissanite at 9.5) – sapphires are also used in some non-ornamental applications, such as infrared optical components, high-durability windows, wristwatch crystals and movement bearings, and very thin electronic wafers, which are used as the insulating substrates of very special-purpose solid-state electronics (especially integrated circuits and GaN-based LEDs). Sapphire is the birthstone for September and the gem of the 45th anniversary.
Sapphire Jubilee of Elizabeth II a celebration of Canada's sesquicentennial in Canada House on July 19th, 2017, the Sapphire Jubilee Snowflake Brooch was presented to the Queen as a gift from the Governor General of Canada. Sapphire Jubilee of Elizabeth II On 6 February 2017, the Sapphire Jubilee of Queen Elizabeth II, marking sixty-five years of her reign, occurred. The longest-reigning monarch in British history, Queen Elizabeth II is the first British monarch to have a sapphire jubilee. Contrary to her Silver, Golden and Diamond Jubilees, there were no widespread public celebrations of the Sapphire Jubilee. Instead, like the February 1992 Ruby Jubilee, the Queen