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Facts about diamond
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World of Gemstones
Antique! But not old



Gemstone is the cut and polished form of minerals. Of course, not all minerals are suitable for gemstones. With its intense beauty this is also necessary that the minerals have hardness and stability. And these type of materials are very rare. There are over 4000 known minerals in this Earth among which only 20 are commonly used in Jewelry.

This birthstone of April is the hardest of all gemstones. It has a hardness of 10 and specific gravity of 3.5. Even though white diamond is the most widely used there are diamonds of yellow, brown, green, red pink etc colors.

Pearl, the birthstone of June is grown within oysters and some other mollusks. White pearls with great luster and minimum amount of pores are most desired. There are many types of pearls such as natural pearls, cultured pearls, freshwater pearls, seed pearls, baroque pearls, biwa pearls etc. Pearls need special care as well, as they are sensitive to different cosmetics and sprays. Pearl has a hardness of 3 – 4.

Birthstone of May, Emerald is a very hard and green precious gemstone. Most of the emeralds are heavily included which helps the customer verify whether the gemstone is authentic or not.

Aquamarine is the birthstone of March. It is a transparent gemstone of beryl family which comes in light blue or sea green. Blue aquamarines are more highly valued. Heat-treatment turns the greenish stones bluer. The best aquamarines come from Brazil. Large aquamarines are relatively common. Aquamarine has a hardness of 7.5-8 and a specific gravity of 2.65-2.85.

This alternative birthstone of October is considered to have the greatest color range of any gemstone. Tourmalines are found in pink, green, red, purple, bluish green and even colorless. Because of its bright shade of pink, pink tourmaline is more desired by young girls. Tourmaline is also found in bicolors and tricolors. Tourmaline has a hardness of 7-7.5 and a specific gravity of 3.02-3.25

This iridescent semi-precious gemstone is the birthstone of October. Opals are known for its majestic fire displayed, almost floating, inside its body. Boulder Opals are recognized by their dark blue and green color with spots of red. White opal on the other hand displays orange-red and greenish-yellow fire. And pumpkin orange color is seen in Mexican opals. Opals need special care as many opals have a high water content and they can dry out and crack if they are not cared for well. Opals have a hardness of 5.5 to 6.5 and a specific gravity of 1.98-2.50.

Garnet is a group of semi-precious gemstones that is found in all colors else of blue. The name is being derived from the Latin word ‘granatum’ meaning ‘pomegranate’ because of its rich deep color. Garnet has a hardness of 6-8 and a specific gravity of 3.5 - 4.3.

Sapphire is the birthstone of September and also from the Corundum family. This hard, precious gemstone comes in blue, yellow, green, white, purple and pinkish-orange (padparadscha) colors. Legend has that sapphire protects its wearer from poisonous creatures. Sapphire has a hardness of 9 and a specific gravity of 3.9 - 4.1. Sapphires are often heat treated to improve their color.

Topaz is a very hard gemstone that is found in brown, yellow, blue and pink. Pink topaz is being created by irradiating common yellow topaz where as other colors are being created by regular heat-treatment of other topazes

Also know as ‘evening emerald’, this yellow-green semi-precious gemstone is the birthstone of August. Even though Peridot has a hardness of 6.5, this gemstone should be worn with care due to its low scratch resistance.

Ruby is the member of the corundum family and considered as the most valuable gemstone. This birthstone of July comes in medium-pink to deep red to purplish red. Burma is famous for the best quality of Rubies. Ruby has a hardness of 9 and a specific gravity of 3.9 - 4.1

Amber is translucent hardened fossilized sap of pine trees often found with organic objects suspended in it. The name Amber comes from Greek word ‘amber’ meaning Electron. This is because if rubbed, Amber produces electricity. 
Amber was believed to possess magical powers that protected the wearer from evil. Amber has a hardness of 2.5 and a specific gravity of 1.05-1.10.

All jewelry needs protection from scratches, sharp blows, extreme temperature and harsh chemicals, and here below are some tips on how to keep them in a proper condition.

Store jewelry separately wrapping in fine fabric in a cool dry place so that they don’t scratch each other and extreme temperature or humidity doesn’t do any harm to your jewelry.

Don’t forget to take your jewelry off while doing house hold works and only put them back on after washing and applying makeup.

Cosmetic like hair spray is very harmful to the jewelry, so always keep jewelry away from them.

Chlorine can damage gemstone and so do not wear jewelry while swimming on pool.

Use lukewarm water and white cotton clothes to clean your jewelry. The resistance to scratch for each gemstone reduces as their level of hardness reduces. Even though all gemstone needs special care and direct hit or blow will scratch the gemstone or break it into pieces, gemstone with the hardness below 7 needs special care. There are some gemstones that are sensible to sunlight, some are to chemicals etc. Here below are some tips on how to clean and take care of some gemstones and the respective gemstone jewelry.

The process of enhancing the quality of gemstone in some extent by some procedures is called Gemstone Treatment. Many natural gemstones found today are treated to improve their appearance and quality. Some different types of treatments are:

1. Cavity Filling
2. Fracture Filling
3. Coating
4. Luster Enhancement
5. Impregnation
6. Diffusion Treatment
7. Dyeing
8. Heat Treatment
9. Irradiation
10. Reconstruction

Some of these treatments are permanent and some are not and some are meant to make a less desirable stone more valuable. While some of these treatments are also common to the industry, it is important that the consumer be told at the time of the sale that the stone has been "enhanced" to look better. Heating of gemstone is considered as the most common and old practice in gemstone treatment. There are certain new practices that are more controversial and are not always welcomed by the gem society. Some treated gemstones need extra care while cleaning and wearing. we carry a large range of gemstone jewelry and only few of them have gone through some popular unharmful treatments. Please note that these treatments are globally accepted by all the gemological society and considered as a regular phenomena.