Blue Tourmaline - Brazil: Tourmalines are the most colourful gemstone group. A tourmaline which is pure blue is a rare thing indeed. Mostly, the blue colour has a more or less noticeable touch of green. These rare blue gemstones originate mostly in Brazil. They are also found today in the gemstone mines of Namibia, Afghanistan, and Pakistan and, recently, also in those of Nigeria.
Blue tourmaline (also known as Indicolite) oval weighing 3.13cts from the Malapa mine, Tanzania. Tourmaline is a gemstone noted for the large and unsurpassed range of colors in which it occurs, but blue is one of the rarest and most valuable color sought by collectors and connoisseurs throughout the world. Color of Indicolite (tourmaline) can vary from a light to a deep blue. Pure blue is the rarest.
A tourmaline and diamond ring, Nardi centering an elongated marquise-cut greenish blue tourmaline, weighing 6.92 carats, measuring approximately 33.50 x 6.40 x 5.30mm., completed by round brilliant-cut diamond shoulders; unsigned, attributed to Nardi; mounted in platinum.
Blue Tourmaline Ring by Jamie Joseph | Naturally colored blue tourmaline, oval faceted gemstone is set in 14K yellow gold bezel and sterling silver "Egyptian" band. Stone measures 9.7mm x 12.8mm, Size 6.75, $1,230.00