Browse our diverse collection of unique Tanzanite rings in your choice of white, yellow, or rose gold. From engagment rings to men's rings, from elaborate works or art, to simple and elegant designs, our 14K gold rings are unmatched in quality, beauty and price. Tanzanite is the new birthstone of December and has a unique purple-blue color. A tanzanite ring is one of the newest fashion trends and is a must for any jewelry collection. Sapphire is the birthstone of September, and one of the most popular gemstones on the jewelry scene today. The deep blue color of a sapphire ring is just right for an evening out.