1. Amethyst is a rare gem, especially high-quality and large-size amethyst is rare. The rarity makes the amethyst seal relatively limited in the market, so it has certain collection value.

2, amethyst purple is its biggest feature, can present a variety of colors, from lavender to deep purple, and even some amethyst will have stripes of other colors. Purple is regarded by many people as a symbol of nobility, mystery and auspiciousness, so amethyst seal is full of aesthetic feeling, so it is sought after by collectors.