Historically gemstones were classified into two categories, precious stones and semi-precious stones, in this article we will talk about traditional precious stones. There are four stones that are classed as precious they are diamond, ruby, sapphire and emerald, all other gemstones are classed as semi-precious. Apart from diamond, ruby, sapphire and emerald, amethyst was considered to be a precious gem until the discoveries of bulk amethyst in Brazil in the 19th century. For some, pearl is also considered as a precious stone although it is not really a gemstone. At present most gemstones are used to adorn every fashion styles and jewelries although the four precious stones always exceed their class.
The hardest form of precious stones is diamond, discovered initially about 6,000 years ago, they have always been recognized as a precious stone, From 19thcentury onwards, diamond rising fame are becoming more and more prevalent as supplies and demands are growing plus new technologies are used to process it into commercial uses.
Rubies the name given to red, gem quality (corundum), is one of the best gemstones for jewelry settings. Although ruby may come is different shades of red, the most sought after ruby is that with pigeon blood hue. Interestingly, rubies naturally have minute imperfections which have been used by many as basis for knowing the real ones over synthetics. Most available rubies are treated and sold at reasonable value while those that are not treated is more expensive.For the rubies, those with higher quality are rubies that are not treated while the treated ones are more common and affordable.
Sapphire, all gem quality (corundum) that is not red is called sapphire, this name is associated with the color blue and is highly prized as a gemstone. Generally, sapphires come in different variant of color blue although the deep blue hued sapphires are said to be the most expensive types of sapphires. Some sapphire stones appear in other color as well but they are more commonly described as the fancy ones. Additionally, yellow sapphire was referred to as oriental topaz before the 19thcentury and only the blue ones were called sapphire.
Gemstones sapphire and ruby belong to one single class (corundum) and emerald is categorized as a separate class (beryl). Flawless emerald with great color is highly valued among its beryl class. Enhancing the overall quality of emeralds by adding oil is a common practice among gem traders. It is also recommended that an emerald buyer must first consult with experts to ensure that he or she will get his or her money’s worth. All of these gemstones have synthetic counterparts that are make in laboratories a synthetic diamond is a cubic zirconia, and ruby, sapphire and emerald synthetic are called created gems, created ruby, created sapphire and created emeralds. Although they are man made they are good quality gems which are inclusion free, a lot of jewelry designers use synthetics in their designs and make beautiful pieces of jewelry at a affordable price. They should not be dismissed as pieces of junk jewelry and should be classed as a well designed peace of fashion jewelry. The hardness of these gemstones are such: diamonds with 10 mohs scale,ruby and sapphire at 9 on mohs scale, and emerald at 7.5 mohs scale. They will stand up to being worn frequently and if cleaned regularly will stay as beautiful as the day you got them. To clean these stones, people usually use ultrasonic jewelry cleaner although for emerald, ultrasonic jewelry cleaner is not effective. Lastly, it is always good to invest of some things that are truly worthwhile and genuinely worth almost all the treasures that is why people normally choose gemstone as their investment because it can withstand the test of time with infallible beauty and elegance.
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