Shenoa & Co Trustmark Verified

By Author: Michael Price
Total Articles: 114
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In almost any type of business there can be those who deal with others in a conscientious way and some who are less than honorable. Shenoa and Co., an online diamond and fine jewelry retailer, knows only too well that there are some jewelers who give the business a bad name. In business since 1980, this company has worked from day one to establish a reputation for honesty and integrity that has been the foundation of their business for all of these years. When a customer purchases diamond jewelry or other types of fine jewelry, they are usually making a significant investment. Jewelers at Shenoa and Co. keep this in mind always when they are doing business. They work to provide customers with high quality products, value, and the best in reliable customer service.

All of the diamonds that are sold by Shenoa and Co. are certified and graded by licensed experts. Though one of things that this online fine jewelry retailer tries to do is negotiate the best initial prices for diamonds so that it can pass on savings to customers, it still keeps to strict standards of quality. It is a member of the BBB Online Reliability Program, ...
... which investigates online businesses and only allows membership to those who meet required standards, including engaging in ethical business practices. When an online company becomes a member, they can display the program's Trustmark on their websites, which is a sign to visitors and potential customers that the business can be trusted. Those who deal with Shenoa and Co. always feel confident when they see this Trustmark displayed.

Interesting Diamond Facts:

Extraterrestrial formation

Not all diamonds found on earth originated here. A type of diamond called carbonado diamond that is found in South America and Africa may have been deposited there via an asteroid impact (not formed from the impact) about 3 billion years ago. These diamonds may have formed in the intrastellar environment, but as of 2008, there was no scientific consensus on how carbonado diamonds originated.

Presolar grains in many meteorites found on earth contain nanodiamonds of extraterrestrial origin, probably formed in supernovas.

Scientific evidence indicates that white dwarf stars have a core of crystallized carbon and oxygen nuclei. The largest of these found in the universe so far, BPM 37093, is located 50 light years away in the constellation Centaurus. A news release from the Harvard-Smithsonian Center for Astrophysics described the 2,500 mile-wide stellar core as a diamond. It is estimated to be ten billion trillion trillion carats, more or less. It was referred to as Lucy, after the Beatles song "Lucy in the Sky With Diamonds".

Surfacing

Diamond-bearing rock is brought close to the surface through deep-origin volcanic eruptions. The magma for such a volcano must originate at a depth where diamonds can be formed — 150 km (93 mi) or more (three times or more the depth of source magma for most volcanoes). This is a relatively rare occurrence. These typically small surface volcanic craters extend downward in formations known as volcanic pipes. The pipes contain material that was transported toward the surface by volcanic action, but was not ejected before the volcanic activity ceased. During eruption these pipes are open to the surface, resulting in open circulation; many xenoliths of surface rock and even wood and/or fossils are found in volcanic pipes. Diamond-bearing volcanic pipes are closely related to the oldest, coolest regions of continental crust (cratons). This is because cratons are very thick, and their lithospheric mantle extends to great enough depth that diamonds are stable. Not all pipes contain diamonds, and even fewer contain enough diamonds to make mining economically viable.
The magma in volcanic pipes is usually one of two characteristic types, which cool into igneous rock known as either kimberlite or lamproite. The magma itself does not contain diamond; instead, it acts as an elevator that carries deep-formed rocks (xenoliths), minerals (xenocrysts), and fluids upward. These rocks are characteristically rich in magnesium-bearing olivine, pyroxene, and amphibole minerals which are often altered to serpentine by heat and fluids during and after eruption. Certain indicator minerals typically occur within diamantiferous kimberlites and are used as mineralogic tracers by prospectors, who follow the indicator trail back to the volcanic pipe which may contain diamonds. These minerals are rich in chromium (Cr) or titanium (Ti), elements which impart bright colors to the minerals. The most common indicator minerals are chromian garnets (usually bright red Cr-pyrope, and occasionally green ugrandite-series garnets), eclogitic garnets, orange Ti-pyrope, red high-Cr spinels, dark chromite, bright green Cr-diopside, glassy green olivine, black picroilmenite, and magnetite. Kimberlite deposits are known as blue ground for the deeper serpentinized part of the deposits, or as yellow ground for the near surface smectite clay and carbonate weathered and oxidized portion.
Once diamonds have been transported to the surface by magma in a volcanic pipe, they may erode out and be distributed over a large area. A volcanic pipe containing diamonds is known as a primary source of diamonds. Secondary sources of diamonds include all areas where a significant number of diamonds, eroded out of their kimberlite or lamproite matrix, and accumulated because of water or wind action. These include alluvial deposits and deposits along existing and ancient shorelines, where loose diamonds tend to accumulate because of their approximate size and density. Diamonds have also rarely been found in deposits left behind by glaciers (notably in Wisconsin and Indiana); however, in contrast to alluvial deposits, glacial deposits are not known to be of significant concentration and are therefore not viable commercial sources of diamond.
Shenoa & Co is the internet's premier destination for jewelry and diamonds. Shenoa & Co knows high quality.