Color Change Sapphire, Vanadium-Doped Lab Gem Stone:Diamond Cushion, 11.4×9.7mm, 5ct The stone measures about 21

The stone measures about 21 x 20 x 19mm and weighs in at 54g

This will be a truly one-of-a-kind D20

showing a silky chatoyance caused by twinning

Due to quick cooling rather than a single large crystal

Color Change Sapphire, Vanadium-Doped Lab Gem Stone:Diamond Cushion, 11.4×9.7mm, 5ct The stone measures about 21These are faceted stones cut from Vanadium doped color change sapphire. It has a cool color change from blue under normal lighting to purple under warm lighting, with a nice greenish purple hue under fluorescent lamps. This material is sometimes incorrectly sold as 'alexandrite', and since mislabeled stones were sold on cruise ships in the 70's and 80's jewelers sometimes call it "grandma's alexandrite". Personally, I think this is cool enough that