Buy the most brilliant and vibrant blue and purple tanzanite for quality prices on Bob Shop. Found only in the foothills of Mount Kilimanjaro, in Northern Tanzania, this blue-purple stone is a highly prized color-shifting gem. Availability is limited and Tanzanite may be mined out within 20-30 years. It will doubtless become even more desirable and valuable. Invest in Tanzanite by shopping online on Bob Shop. Find natural tanzanite stones in rich blues, purple and burgundy hues. Bidorbuy has violetish blue and blueish violet gems. You can buy tanzanite of vB or Bv 5, 4, 3 or lower. Find Eye Clean - EC - Tanzanite or Slightly, Moderately or Heavily Included Tanzanite. You can find all shapes and cuts on Bob Shop - Asscher, emerald, cushion, heart, round, princess, oval or pear - in range of carats from 0.05 carats to over 5 carat stones.