There are seven rare gemstones identified as precious stones. These are:

• Diamond
• Ruby
• Emerald
• Sapphire
• Pearl
• Oriental Catseye
• Alexandrite

These stones are highly valued for their rarity, rich colors, and durability. However, it is worth noting that the distinction between precious and semi-precious stones is not as applicable today as it was in the past, and many professional jewelers no longer use these terms. Beyond these seven precious stones, there are many other gemstones that deserve a place of honor in your collection. These are called semi-precious stones, and they include a wide variety of gemstones such as amethyst, topaz, garnet, beryl, and more.