Our Tanzanite Engagement Rings boast themselves with their rich lilac, blue, and violet colors. As one of Earth’s rarest minerals, Tanzanite is found almost exclusively at the foothills of Mount Kilimanjaro, Tanzania. This modern December birthstone was discovered fairly recently and brings mystical elegance to your forever ring. Tanzanite looks best in larger shapes like the majestic emerald cut and pairs well with all metal colors.