Precious stones are considered to be the rarest and most valuable type of gemstones.
There are only four types of precious stones:
Precious stones are often used for jewellery due to their beauty and value.
All other stones are therefore called semi-precious stones.
Semi-Precious stones are usually abundant in nature and don't have the same rarity as precious stones, but they can still make beautiful jewelry pieces.
Modern semi-precious gemstones include beryl, chalcedony, agates, onyx, tourmaline, spinel, topaz, turquoise, zircon, amethyst, Alexandrite, cat's eyes, bloodstones, moonstones, and sunstones.
Gemstones refer to any type of stone that is cut and polished into a specific shape for use in jewelry or other decorative uses. This includes both precious and semiprecious stones that have been shaped through a cutting process to enhance their appearance.