Types of Semi-Precious Stones - How Are the Evaluation Standards Established?

Semi-precious stones are symbols of power and wealth in society. They have a wonderful attraction for those who are passionate about beauty. Moreover, from ancient times until now, people have always had a need and preference for using these semi-precious stones. To adorn themselves and become more beautiful. Helping them affirm their own class. Right now, let us learn about knowledge of semi-precious stones.

1. The concept of semi-precious stones

Semi-precious stones are a type of mineral. They are used to process valuable jewelry products. Or displayed in exhibitions, crafted into highly valuable items. The standards for semi-precious stones are aesthetics, rarity, and strong durability. So they can withstand heavy pressure during the crafting process. As well as help the product last longer in use.

Semi-precious stones are actually a type of mineral

2. Standards set to evaluate semi-precious stones

To be called a semi-precious stone, it usually must satisfy the following conditions:

2.1. External beauty and attractiveness of semi-precious stones

Optical properties are the factors that determine external beauty. As well as the attraction of semi-precious stones. Thanks to that, we can use them as a measure to evaluate their actual value.

• Reflectivity and refraction

One of the factors determining the sparkle of a semi-precious stone is its reflectivity. When light shines on the surface of a semi-precious stone, it will be reflected back. The more meticulously polished a semi-precious stone is, the higher its value will be many times over. We can easily see this through its flatness and very good reflective surface.

Experts have measured the refractive index of semi-precious stones by using concepts of refractive index or RI.

• About color and cut

Semi-precious stones have attractive colors that catch everyone's eye. This makes them more valuable than other ordinary stones.

The number of cut facets is one of the important characteristics that make a semi-precious stone sparkle and look more beautiful than ever. When crafted into jewelry items, it helps enhance freshness and a sharp beauty especially for women.

• Shape and size

The shape and size of a semi-precious stone also create more attraction and appeal than other ordinary stones. Thanks to these two characteristics, artisans can successfully craft highly valuable items. Through their polishing and finishing skills in the most suitable way.

2.2. Hardness durability

External beauty alone is not enough. A valuable semi-precious stone usually achieves the most suitable durability. It also depends on its structure and the mineral components contained inside it. In addition, the hardness of a semi-precious stone is no less important. Because this is the factor that determines its resistance to abrasion. Helping reinforce its durability for a long period after processing.

2.3. Rarity

As everyone knows, the rarer something is, the more valuable it becomes. And semi-precious stones are the same. No matter how beautiful a semi-precious stone is, if it is too common and found in abundance, it also reduces its value. On the contrary, although that stone may not achieve high aesthetics, the rarer it is, the higher its value becomes.

3. Which semi-precious stone is the most expensive, and which is the cheapest?

We still cannot determine exactly which semi-precious stone is the most expensive and which is the cheapest. Therefore, below we would like to list two semi-precious stones in the world that have been loved and highly appreciated by many people.

• Aquamarine

On the Mohs scale, Aquamarine reaches a hardness of more than 7.5. This is a very durable semi-precious stone. If crafted into everyday items, it is very difficult to scratch or damage. Moreover, in terms of transparency and purity, it is even more wonderful.

Aquamarine stone

• Citrin

Citrin semi-precious stone is extremely natural. With its prominent yellow color, it has been highly appreciated for both aesthetics and durable internal structure. In addition, Citrin crystals also come in brown, orange, reddish-brown, and dark brown. This is the most sought-after quartz crystal in the world at present.

Just from a few of the characteristics mentioned above, we can easily recognize how wonderful semi-precious stones are. Not only do they make life more vibrant, but the applications of this type of stone are also fascinating. It can also be used for therapy as well as relieving pressure and stress thanks to its ability to attract positive energy from nature.

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