2.74ct Emerald Cut Colombian Emerald, Measures 8.77x8.54x5.94mm. With Appraisal. Item: XTR172
Only 1 item left Price: $7,198.80
Product Description for 2.74ct Emerald Cut Colombian Emerald, Measures 8.77x8.54x5.94mm. With Appraisal.As a discriminating collector, when you think of emeralds, you think of Colombia. When you think of Colombian emeralds, a discriminating collector "in the know" would think of the Muzo and Cosquez mines in Colombia, the most renowned emerald mines in the world. This beauty was mined there. But what makes a Colombian emerald so special? These emeralds have a transparency and color like no other emeralds on Earth, making them highly sought after by collectors and even members of royalty throughout history. Emeralds are a type III gemstone, meaning that they commonly have clarity characteristics (romantically known in the trade as "jardin"), but Colombian emeralds are typically the cleanest of all emeralds. This beautiful emerald has the bright rich color, unusual clarity, and excellent cut worthy of its esteemed "Colombian emerald" pedigree.
Product Information for 2.74ct Emerald Cut Colombian Emerald, Measures 8.77x8.54x5.94mm. With Appraisal.
| Product Type: | Single Stone |
Primary Stone / Emerald
| Shape: | Rectangular Octagonal | Composition: | Natural |
| Cut: | Emerald | Treatment: | Standard Treatment |
| Color: | Green | Gemstone Group: | Beryl |
| Dimensions: | 8.77X8.54 MM - Not Calibrated | Origin: | Colombia |
| Count: | 1.00 | Origin: | Colombia |
Care and Handling of 2.74ct Emerald Cut Colombian Emerald, Measures 8.77x8.54x5.94mm. With Appraisal. |
| Learn more about proper care of your gemstones and jewelry by visiting our Gemstone Enhancements and Treatments page. |
 home learning library emerald
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Fast Facts
| The most precious member of the Beryl family; emerald exhibits a distinct and recognizable pure green hue. |
| This glorious stone was traded in one of the earliest known gem markets in Babylon around 4000 B.C. |
| According to legend, the Emperor Nero watched the gladiator fights through an emerald. |
| The world’s finest emeralds are found in the Andes of Colombia. Despite a 300-year search, no other deposit has rivaled the glory of the Colombian deposits. |
 Emeralds are created with interesting and distinct identifiable “jardin” inclusions, which are particular to that beryl and are one of the most immediate ways of recognizing a genuine natural emerald.
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Emerald is the most precious member of the Beryl family. It exhibits a distinct and recognizable pure green hue but can also be found in a bluish-green hue. On Mohs’ scale of hardness, emerald is 7.5-8. It has a vitreous luster and sources include Colombia, Zimbabwe, South Africa, Russia (Urals), Afghanistan, Australia (New South Wales, Western Australia), Ghana, India, Madagascar, Malawi, Mozambique, Namibia, Nigeria, Pakistan, Zambia, Tanzania, and the United States (North Carolina).
The beauty of Colombian emeralds, known for their extraordinary color and crystallization, is unique since their formation process occurred in a different geological environment than all the other known emerald deposits. They are found in black argillaceous limestone of the Upper Cretaceous age, which was deposited in a sea separating North and South America.
During the Continental drift, the Andes Mountains were formed, and beds that were originally at the bottom of the sea found themselves at the top of the mountains. While folding, the rocks fractured, which provided space for the growth of calcite veins. Hot magma followed by hot gases and fluids permeated through the cracks, bringing with them the elements necessary to crystallize emeralds. These gases were trapped in the crust of the fold in the eastern cordillera of the Andes by an impermeable shale formation. Since calcite veins are porous and permeable, the emeralds had an opportunity to crystallize while the gasses and fluids cooled off.
Color
Emerald exhibits an incomparable pure green hue but can also be found in a bluish-green hue.
Treatments and Enhancements
All emerald crystals go through the same six-part enhancement process to become the gemstones we are familiar with. These steps are sawing, performing, cutting, polishing, cleaning, and clarity enhancing. Virtually all emeralds require the process of clarity enhancement. This process involves immersing the emerald into a colorless medium. An infinitesimal amount of the clarity-enhancing medium penetrates the open fissures in the emerald. This volume is so small that it is usually not measurable by weight (as little as 1/100,000 of a gram).
It should be assumed that every emerald has been processed in this manner unless it has an accompanying laboratory report indicating that there is no evidence of a clarity-enhancement medium. Such extraordinarily rare stones command a considerable premium.
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