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Genuine Blue TANZANITE ROUGH Crystal Tanzania Raw Rough Gemstone Lot - 146 Grams.
Tanzanites blue violet color is second only to sapphire in desirability with a price that is a fraction of sapphires price. The colors is comes in are blue, violet, purple and other lss valuable colors.
2) Large gem are available at a price per carat that is no higher than smaller gems. Currently a gem quality 2 carat tanzanite sells for the same price per carat as a twenty carat tanzanite. This will change as the market for tanzanite increases. If you look at a gem like sapphire and diamond large gems can be 20 times the price per carat of their smaller counterparts.
3) Tanzanite is becoming accepted as the birthstone for December along with blue zircon.
4) Tanzanites blue violet color is unlike any other gemstone.
5) Tanzanite displays a color change when viewed in incandescent lighting that is more violet and changes to blue in daylight.
6) This color changing character is most associated with Junes birthstone Alexandrite. Rare examples of tanzanite display a color change that is close to 100% from amethyst purple to sapphire blue.
7) The average tanzanite has much higher clarity than many other popular gems including sapphire, emerald, ruby, alexandrite, Garnet, Peridot, Quartz, Amethyst, Citrine, Ametrine, Spinel, Tourmaline and Zircon.
8) Investment-Tanzanite will be mined out in 15 to 25 years. Tanzanite One gives the longest estimate of 30 years of tanzanite production. I view this as an overstatement as Tanzanite One or Richland Resources is publicly traded and investors don't want to invest in a company whose product has a short life.
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