The difference between Precious and Semi-Precious gemstones: If you ask this question to a layman or outsiders who have no idea that how gemstones are being graded and treated, they will inform you that precious stones are high-quality stones whereas, the semi-precious stones are a considerably low-quality stone in comparison of precious stones.
However, if you ask the same question to gemstone experts or industry insiders; they will tell you that there is no semi-precious and precious stones exist in reality. These all are marketing terms used by gem sellers to sell their gemstones at high rates.
Both semi-precious and precious stones are basically a portion of mineral which is cut or refined in such a manner so that it can be used in jewelry creation and other embellishments.
Diamond, Sapphire, emerald, and ruby is being classified as precious gemstones. These stones are being sold at a high price due to their rich physical and metaphysical attributes. However, it is totally a misconception which was created years ago for commercial perspective.
Otherwise, tsavorite and amethyst both stones possess excellent physical properties and green tsavorite is considered more valuable than sapphires. But still, this stone is put under the category of semi-precious stones which completely ancillaries or cipher this false impression created for commercial perspective only.
Except for diamond, sapphire, emerald, and ruby, all other stones are being put under the category of semi-precious stones.
These stones are considered secondary in quality in comparison to a precious stone, but it is not true. There are plenty of excellent quality semi-precious stones found across the globe some of them are amethyst, topaz, zircon and beryl.
The royal violet and purple color amethyst stone belong to the quartz family. It is often being contemplated as a substitute for blue sapphire stone. Amethyst stone has a refractive index of 1.5444-1.533 and its specific gravity is 2.65. The stone has been in use since ancient ages.
It is believed that wearing amethyst stone helps a person to overcome alcohol addiction because of being a strong antidote to intoxication. Amethyst stone is also revered being the birthstone of moth February. Therefore, if you’re born in the month of February, then you must wear this stone.
It is considered to be pleochroic, means that the stone can exhibit different colors. Due to the pleochroic effect, the topaz stone is spotted in various colors such as red, yellow, blue, pink, purple, white and colorless. The stone is also marked as the birthstone of month November, thus if your birth date falls in this month, then, you must wear this stone.
It is stated that wearing this stone will bring enormous positive favors in your life in just a short span of time. Among different color yellow topaz and blue topaz is supposed to be the most popular colors of topaz stone.
It is a most fascinating mineral. It occurs in different colors and has important gemstone varieties. The precious gemstone emerald is also a type of beryl mineral. The light green color beryl is not emerald stone, it is “green beryl stone” because the emerald stone is denser in color. A pure beryl stone is colorless, however, the varieties of colors it produces due to the availability of inclusions inside the stone.
It is a historical stone which has been in use for a thousand years. Some time due to its proximity with diamond, it is looked upon as “cheap diamond”. This stone is spotted in various colors ranging from red, pink, blue, yellow, brown and orange. Zircon stone is the traditional birthstone for December.
This semi-precious stone is spotted from Burma, Ceylon (Sri Lanka, Tanzania, Madagascar, and Pakistan). The hardness of this stone is 7.5 on the Mohs scale and its refractive index lies between 1.930-1.987 and specific gravity is 4.8.