A ring featuring natural grandidierite. Stamped Pt900, size 13.5. It has a very dense blue-green color. Even when viewed with a 10x loupe, there are no inclusions, scratches, or chips of concern. The color is not faded; in fact, it's so dark that it appears somewhat black in a dimly lit room. However, when held up to a light source, it exhibits a strong, shimmering blue-green brilliance.