Loose Emerald Gems

September 25, 2011 By Leave a Comment
Loose Brilliant Cut Emerald Gemstone

Loose Brilliant Cut Emerald Gemstone

Why are emeralds and rubies lose so cheap?

I found a site that sells the 44 right good look as natural emeralds $ 220, which retails for $ 2,400 and six fair oval rubies for $ 150, which retails for $ 1,600. I always thought has a lot of loose stones is pretty pimp so I'm thinking of buying them. It is a scam. What is the catch. The site is www.lg-gems.com.

It is only used for emerald, which is for jewelry. large emeralds are perfect laboratory easily manufactured, it is what you want. no request for small, imperfect (inclusions and defects in color), cloudy (semi-transparent stones LG calls it) emeralds. That is why they sell for cheap because they are worth less. pear shape? a precious emerald would be pear shaped, should be an "emerald" cut to show off the clarity, brilliance and refraction of perfect color. LG-looking rocks and stones fell even cut. $ 2,400? a nominal emerald than "good" should be the size of tennis balls to be worth much. only value will be in costume pieces, and green glass would look much better.

Emerald cut Emerald

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Loose Blue Topaz Gemstones

November 15, 2009 By Leave a Comment
Blue Topaz Trillion Cut Gemstone

Blue Topaz Trillion Cut Gemstone

A number of techniques are used to improve color and appearance of natural and synthetic gemstones. The aim is to enhance their beauty, it is desirable, and saleability. Probably the oldest methods is that the heat treatment of gemstones to enhance or change color. Carnelian warming was made in India for over 4000 years and oiling of emerald was known for over 2000 years.

Following progress on technology, there are now many different techniques, using modern equipment such as lasers, and computer controlled heating and irradiating procedures. Lasers are used in diamond drilling to reach the inclusions. They are then evaporated or removed by chemicals before the crack is filled. Some treatments are permanent, such as drilling that others may be temporary. For example, stains and fillings can leak, some stones heated, irradiated, and can disappear or return to their original color.

Most rubies and sapphires are heat treated to improve their color. Sapphires found too dark color may have diminished by heating at 800-1400 degrees Celsius, in oxidizing conditions. Very pale gray-brown material from Sri Lanka called geuda can be changed to blue by heating at temperatures of 1500-1900 degrees Celsious in reducing conditions (without oxygen present). Variations in temperature and the conditions to allow more subtle color changes, some of which only reaches just below the surface while others change the whole rocks. Over Brown Topaz 100 years been heated to provide an attractive pink and amethyst citrine was changed to uncommon.

As well as heating, of precious stones may be irradiated to improve or change their color. They may be exposed to gamma rays or bombarded particles such as electrons, neutrons, protons, or alpha particles. Many colorless Topaz is irradiated and heat treated to blue.

Most emeralds have flaws or cracks that hijack attention from their beauty. Traditional oiling emeralds are a simple process. In essence, it is only a stone involves immersing in oil or deletion surface lines with an oily rag. The oil is then sucked into the cracks, with the result that they are less visible and the stone appears to be clearer and more color.

Nowadays varied colorless oil, wax, and plastics are used in a number of different gemstones. Some remain liquid, others, such as hard resin set in stone or as a surface layer. Turquoise, Lapis lazuli, jade and some chalcedonies are meeting in liquid paraffin or has a surface layer of wax after polishing, which has penetrated the stone to fill cracks and gives a better surface color. In addition, colored oils and resins are also used. Match the color of oils or resins the stone improves color and hide flaws.

If a stone was anointed may feel greasy or leave stain when removed with absorbent material such as a tissue. Years of wear or cleaning with ultrasound may displace any oil and filling the resulting cracks in the stone that will become more obvious and worst of rock will fracture.

Colorful paints and stains can be used also on some rocks. Agate is dyed to imitate stone or give more light, but rather unnatural looking greens and blues to pinks decorated carved parts. Quartz rocks were painted green to mimic Reference to imitate Jade and Ruby.

Stone crushing involves placing a piece of material to reflect, such as a sheet metal behind the stone to change or improve the color and stone to light. Thwarting was used in the UK especially during the Victorian era to strengthen costume jewelry made of paste (glass). Thin layers of gold, spike and other metals can be deposited on the surface of gemstones and crystals to give the area a flower. If the back of the stone is covered, as quality growth would mirror reflectivity and stone appear brighter, and taking the color coating. Quartz crystal coated with a surface layer of gold to give a pale

Learn more about gemstones treated and enhanced or about other gems at our mineral blog.

20x20mm Cushion-Cut 23ct Swiss Blue Topaz

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Emeralds

November 9, 2009 By Leave a Comment
Brilliant Cut Emeralds

Emerald Cocktail Ring

If you are a jeweler or jewelry enthusiast, you might be surprised to learn that many gemstones are consolidated in one way or another. From diamonds, rubies, sapphire, and on down to "smaller stones, treatments are quite common. Types of treatment and the reasons for treating a stone are very dependent classification of rock. Some estimates suggest up to 95-99% of all emeralds are treated. Most are treated to improve the passage of light within the rock. Physical makeup emerald crystal, with its natural small cracks just makes sense to do so. As with those more stones, natural stone properties, which simply dictate accessories are acceptable and which are not. A perfect example of this would be treatment heat of Tanzania. Before heating, Tanzania is a brown, but always turns blue or purple color after heating. Method enhancement is accepted because foreign agents were introduced coloring method is common practice, and is generally fully disclosed to the buyer.

Cedarwood Oil

Many centuries ago, the Greeks began using colorless oil to improve appearance of emeralds taken from Egypt. The oil would fill the natural cracks and fissures in the stone to improve how light can pass through stone. Practice is still very common today. In fact, it is most widely practiced and accepted method emerald enhancement. Today, most natural colorless oil of cedar wood is used and has been in the past four decades. This is not permanent, but is quite stable. In time, some oil may evaporate out or "leakage" from the stone. When this happens to rock slightly oiled, change in appearance will not be significant or even visible, but may be harder on those treated. Note that we are not talking about months or even a few years, but probably over a decade or more. Jewelry Ultrasonic cleaning and remove harsh solvents, also treatment of cedar oil and possibly other types of treatments as well. This cleaning should be to be used on emeralds. If a stone loses enhancement oil, most can be withdrawn.

Epoxy

There are several types of treatments epoxy, therefore, we speak about them in a very general sense. They are as varied as they are applied to emeralds, and, Of course, some are better than others. Epoxies are used to fill naturally and unnaturally, fissures and cracks appearing in rocks. They are used much less than the treatment of cedar oil and are considered less desirable treatment option. The practice of using an epoxy is supported to an extent. When done properly, the treatment can significantly improve the appearance and transparency of a stone. Some may be used for to mislead the buyer .. So be aware of what is there. Embassy of the emeralds you have little to worry about. Sources Our established and reputable. We feel very comfortable because we know we provide stones sources share the same high quality standards that do.

Gematria

Gematria was developed in 1997 as a way to permanently treat emeralds, leaving them in a stable condition and permanent once completed. The process was defined as "branding gem" and begins with a very extensive stone cleaning, which may take weeks or even months in some cases. Small stone's flaws and cracks are then filled with gematria colorless substance, which is said leak or discolor. Substance also contains a flare that illuminates blue under ultraviolet light.

According to manufacturers of treatment, you gematria put stones treated in an ultrasonic cleaner, a boat, and even stone recutita without damage. Stones are sold with an American Laboratories Gemological (AGL) report.

ExCel

Other emerald treatment process developed by the process of gematria. This process includes the item tracer which was currently under previous treatment because of incompatibilities and the emergence of many counterfeits that mimicked the effect of the light tracer ultraviolet. Information on GEM is laser engraved on the stone belt.

Palm Resin

Also known as de Palma, this is an oil-like treatment of plastic is used instead of Cedarwood oil. Treatment is not stable or permanent and tends to leave a milky-white residue. It is still used, but is not considered an acceptable treatment.

Opticon

Treatment software which first appeared in the 1980 Brazilian emeralds. Use of this treatment was not disclosed and was considered a method of free the ethics of enhancement. Opticon substance is green but may turn yellow over time. Many feel that Opticon treated emeralds are easily detected by their appearance compared with untreated or treated stones typical Cedarwood.

PermaSafe

This permanent, synthetic resins Treatment Emerald resin was developed by Gemologico Centro para la Investigacià³ n from Esmeralda (CGIE) in Bogota, Colombia. (Center for Emerald Gemology investigation), treatment was intended to be an alternative to gematria and Excel Colombian continuous treatment. It is assumed a stable, permanent treatment that will not evaporate or drain and safely may be subject to ultrasonic cleaning. Same resin was used in other commercial applications outside the jewelry industry.

Joban

A treatment commonly used in India, using a green oil, not only to fill the mask cracks and fissures in stone, but to also give a better color. The process is considered unethical.

Paraffin

Usually used on emeralds from Africa, wax is used in a form of oil or wax.

Embassy Emeralds was founded in 2005 with the goal of building a successful business by bringing high quality Colombian emeralds at good prices to those who share the same appreciation for these captivating green treasures. My vision for Embassy Emeralds is simple. I intend for us to become your trusted source for Colombian emeralds. Quality stones, pricing, service, and attention to the customer will be the things you remember about your buying experience with us and we will do everything necessary to ensure that this is the case. We buy only high quality emeralds in Colombia and only from reputable sources and I personally handpick each stone to ensure each one measures up to my high standards of quality.

For more information or to see our catalog of fine loose emerald gemstones, visit us at http://www.embassyemeralds.com

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