Natural amethyst stones are an excellent choice for jewelry, as they have a deep mauve colour and high clarity. The round shape makes them easy to mount in different types of settings, and the 2.90–3.10 mm size is suitable for earrings, rings or pendants. Their weight ranges from 0.10 to 0.15 carats, making them affordable and attractive. These amethyst stones have not undergone any heat or chemical treatment, thus preserving their natural properties and beauty. Their origin is Brazil, a country renowned for the quality and variety of its gemstones.