Gemstones are expensive for several reasons, such as:
Gemstones are formed deep within the Earth’s mantle and are not found at the surface. They can only be mined from certain areas, which add to their rarity. They are a finite resource, meaning that they are not infinite and cannot be replaced once they have been removed from the Earth.
Their value is not determined by their name, but by their evaluation, colour, clarity, and cut. The name of a stone may or may not be a criterion for determining its worth. Colour, clarity, and cut are three crucial qualities that must be assessed to define the value of any rough or finished product. Gemstones with intense and vivid colors, high clarity, and excellent cut are more valuable than those with faded or uneven colors, low clarity, and poor cut.
Gemstones are hard and resistant to scratches, chips, and cracks. They can last for a long time and retain their beauty and value. The Mohs scale of mineral hardness is a common way to measure the durability of gems, with 10 being the hardest and 1 being the softest. For example, diamonds are the hardest gems with a Mohs rating of 10, while pearls are among the softest with a rating of 2.5 to 4.5.
These are some of the reasons why gemstones are so expensive.