Vintage Unisex Brilliant Star Sapphire/Diamond Tie pin

Vintage, Unisex, Brilliant Star Sapphire/Diamond Tie pin. The centre stone, A deep, intense Blue Star Sapphire with 2 diamonds on either side on wing. In excellent Vintage condition ready for gift giving, suitable for all ages. Could be placed on a lapel, collar, hat, purse, scarf and the like. Blue Star Sapphire are a rare and beautiful type of sapphire. The star which shines upon its surface is an asterism, which gives the stone a six-rayed star when viewed under light. The best colour for a natural blue sapphire is an intense, velvety, deep royal blue. This color of sapphire would be considered AAA quality, the rarest and most valuable. The second best color is a medium rich blue, or AA quality. Any blue sapphires that have a slight grey undertone fit into the A category.