Gemstones can be divided into two types: Precious Stones or Semi-precious. The terms are well-known and used by most sellers. These terms are not liked by many people in the industry.
Precious stones are mostly Diamonds, Rubies, and Sapphires also called as blue gems. Opal, Jade, and Pearls were sometimes included in this class. Many people believed that "precious stone" was more valuable and important than "semiprecious".
This name is used to describe all other types of gemstones. Semiprecious stones can be used for adornment. Agate, Amethyst, Amber, Aventurine, Aquamarine, Chrysocolla. Chalcedony and Chrysoprase.
Garnet, Citrine Garnet, Jade Lapis Lazuli Moonstone, Onyx. Rhodonite Sunstone, Tiger's eye Tanzanite Topaz Turquoise, and many more fall in this "semiprecious stone" category.
Although there are many reasons to stop using the term "semiprecious", this term has been in use for over 150 years. It is time to end it now. This term is used in professional settings so it is difficult to completely eliminate. This term is beloved by many people.
The grade of any stone can only be determined by its quality and marketability. Potential price, color, and clarity. Many precious stones have a lower price than semiprecious stones. This makes them low-grade.
Many semiprecious gemstones have higher values per carat than precious stones.
These results indicate that semiprecious stones and precious stones were once called by a specific group of people in the 1800s, but there's no way to distinguish them now.
When choosing a gemstone recommended by an astrologer, one should not focus on the price. The importance of the gemstone is what makes it truly precious.