These sharp amethysts are known for clarity and luster, but even so this is in a very high percentile. The quality is through the roof, just glassy as you could wish for and brilliantly colored with an "internal sparkle" that is hard to convey. Intense grape-juice colored amethyst phantoms inside such limpid clarity, make these unique among the world's amethyst finds. This is a superb example in every way with top quality transparency, color and color contrast, and luster. It is from the well-known Charlie Key quartz collection (Charlie was a longtime dealer there, and built this collection over decades). Joe Budd photos