The brilliant round standard cut is weighs 1.84 carats and will make a wonderful droplet of color. They like yellow in tourmaline almost as much as I do. It appears to be eye clean. At first I check the stone under a yellowish light, which is produced by one of those modern twisty fluorescence lights in a yellow shade and makes the gemstone a very uniform medium rich toned yellow. So as I started to write, I decide that I ought to expend a little more effort and confirm the general properties of the gemstone in gray natural light (bluer). Well I started to chuckle, which I don’t do often, because the gemstone has become much more dichroic with a richer more golden yellow blending into a paler purer yellow. Wait now before conclusions are reached, the sun just momentarily peaked out and I caught a few rays. The yellow was back to being a very nice. uniform, well saturated yellow. The gem is really pretty well behaved, but I have warned you before that you should see your precious tourmaline under different lighting conditions to truly appreciate it or not.
I put this in a separate space because the most important point in looking at this gemstone under different lights is to confirm that it does not have a greenish cast under any reasonable conditions. It is also does not have a significant amount of brown because of a low level of saturation (purity of color). All this makes the tourmaline rare and difficult to get a hold off. I think that the principle competitors are the Japanese who are willing to spend large amounts of money on selected gemstone like Paraiba tourmaline and jade.