Own one of the oldest and newest gems with an eye-catching tanzanite and diamond ring. The tanzanite has existed for millions of years. It wasn't until 1967, this December birthstone was found in the Merelani Hills near Arusha in the north of Tanzania. After the discovery, it was celebrated as the "gemstone of the 20th century". This jewel has a vibrant violet color that only looks better when accented by diamonds. Stumble upon a tanzanite and diamond ring and unearth a newly discovered hidden gemstone.