Brilliantly balanced between regal purple, velvety violet and vibrant blue, tanzanite is prized for its distinctive color and rarity. Discovered close to the bottom of Mount Kilimanjaro, this mesmerising gemstone has an intriguing backstory. Tanzanite was fashioned in the course of the Ediacaran Interval, which occurred practically 600 million years in the past. Distinctive warmth and plate tectonic exercise sparked the gemstone’s improvement amid a comparatively complicated geological surroundings not discovered anyplace else on this planet. Mined commercially in Tanzania, tanzanite is never discovered anyplace else on the planet with geologists estimating that pure tanzanite is as much as a thousand instances rarer than pure diamonds.The chances of discovering tanzanite anyplace else on Earth are round one in 1,000,000. Pictured: the Princess of Wales sporting G.Collins & Sons.