Sapphire

This stone has an alexandrite type color change. I’ve seen it show a steely greenish blue color in subtle daylight, and a fairly nice medium…

This bi-color Montana sapphire shows a fairly even mixture of yellow and white flashes because of having a yellow spot in the middle of a mainly colorless…

This is a very cool bi-color sapphire that also has a color shift from a lemon yellow/blue in daylight to a golden yellow/purple under incandescent…

This is a bi-color stone but the yellow doesn’t show much. Basically just looks like a dark blue trilliant. Inclusion no distracting. Stone…

This is an untreated Songea sapphire that has a mild color shift from more of a medium very slightly greenish blue in daylight to more of a purplish…

his stone has been heat treated to brighten color. Many untreated red african sapphires (rubies) look like dark garnets unless they are heated…

Nice purple under most artificial light, blue-green oudoors.

This is an attractive, unusual stone.

Cordierite is a blue and violet mineral that gemologists call “iolite”. Cordierite is a trichroic gem, which means that it appears as three…