Indicolite is one of the two blue color tourmalines. The other color is Paraiba type tourmaline. We’ve mentioned in the past that Paraiba type tourmaline is the most expensive of the tourmaline colors. In recollection though Indicolite is probably rarer. We’ve seen only very few Indicolite gems over 5 carats of truly highest quality. We’ve seen and owned many more pieces of the Paraiba type by comparison.
The gem in the photo is a great 12+ carat example of Indicolite. Typically an Indicolite will tend to be a fairly dark color. The better examples will be a somewhat dark color but not too dark—like the one in the photo. The best Indicolite I’ve seen so far was a Brazilian stone of over 50 carats—and still not too dark. The fellow who owned the stone (back about 1985 or so) wanted what would amount to $1,500,000 in today’s dollars. It was exceptional.