Exotic tanzanite nanosital displays a rich violet-blue unique among gems. Rivaling sapphire in beauty, this rare hue stands out with its blend of cool and warm tones. Tanzanite nanosital makes a meaningful December birthstone for those who prefer an alternative to blue zircon. The trichroic color varies under different lighting. Set in platinum, tanzanite nanosital glows with regality. This lab-created gem allows more people to enjoy the spellbinding magic of tanzanite.