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Diamond is a stable allotrope of carbon. Allotropy is chemically the ability of an element to exist in more than one form in the same physical state. The second allotrope of the same element is graphite. The characteristic different in the two allotropes is in their chemical bonding, where both are covalently bonded but their atomic combinations is different. In diamond, every single carbon atom is covalently bonded to 4 other carbon atoms, hence utilizing all delocalized electrons in carbon. Commercial properties of diamond including poor electrical conductivity are as a result of this chemical composition.

Chemical facts – physical properties of diamond

Physically, diamond is a shiny solid, crystalline in nature. It’s colorless and transparent. One of the best known qualities of diamond is its hardness. Mineral experts have argued that it is the hardest mineral in existence. The hardness of diamond is attributed to its intrinsic chemical composition (Thomas, 1991). Chemically, carbon, with an electronic configuration of 2, 4 require 4 electrons in its outermost energy level to attain stability. In diamond, this is achieved through covalent bonding where each atom combines covalently with 4 others. This implies that the 4 outermost electrons are effectively used up in bonding. The resulting structure from this combination is an octahedral structure that extends in all directions. The covalent bonds are very strong making it very hard to break it. The melting point is considerably high, estimated at 37000c.

Another common property is its poor electrical conductivity. This comes as a result of lack of delocalized electrons in its bonded structure. Recent developments have seen diamond being used as an insulator where it’s first doped with boron, an element that creates gaps within the octahedral structure making it possible to conduct. The Boron impurity also makes the diamond appear blue in color. The physical appearance of diamond is primarily clear colorless (Thomas, 1991). This is because it has a band gap of approximately 5.5eV. This band gap chemically corresponds to an ultraviolet radiation wavelength of approximately 225 nm. Other colors associated with diamond, principally originates from impurities and lattice defects. Using technology the impurities are introduced in diamond in a process referred to as chemical growth in diamond. The dominant impurity in diamond is Nitrogen which makes the diamond appear yellow or brown. Boron impurities make the diamond appear gray bluish. Other colors such as red and green are achieved through plastic deformation which involves the physical deformation/ disorganization of the diamond crystal.

Identification of Diamond

The principal identification method is based on the hardness and their high thermal conductivity (Boser, 2008). The material also has a high thermal conductivity, though this cannot be relied upon because other materials also exhibit a similar r property. In the Mohs scale, diamond follows quartz on the ability to cut glass so the ability to cut glass is not a conclusive test. Another test is the ability of diamond to scratch other diamonds though this normally results in the destruction of both pieces (Thomas, 1991). In the laboratory, special techniques such as spectroscopy, luminescence and microscopy are normally applied. In luminescence, the diamond is normally illuminated using shortwave ultraviolet radiations. Special machines are also used in identification. Diamond sure and Diamond view are specially made machines developed to test the authenticity of marketed diamond.

Natural Formation of Diamond

Naturally, diamond is crystallized from fluids containing high carbon content. This crystallization, achieved industrially is achieved using considerable amounts of heat and pressure. Heat needed is approximately 20000 F and 50000 pa of pressure. These kinds of pressure and temperatures are only found occurring at surfaces deep below the sea level. It is the belief of most scientists that diamonds form in depths well below 150 km below the earth’s surface (Hesse, 2007). The quantities of diamond enough to satisfy the industrial and commercial purposes are found in some geologically rich places scattered in some parts of the Earth’s continent. Most continents are formed of cratons which consists are the primary content of the earth’s crust formed approximately more than 2 billion years ago. Scientific dating has established that some diamonds could have formed more than 3 billion years ago. The current deposits of diamond are estimated to originate from volcanic rocks which are believed to have been deposited in strategic places through massive volcanic activities (Hesse, 2007). Deposit of diamonds available today is results of alluvial deposits which have resulted through weathering and movement by water. Strong winds and glacial movement have in the past contributed to transportation of diamond across different geographical positions in the Earth. Tectonic movements have also been credited with moving diamond deposits from great depths. Such kinds of deposits have been found in laces such as Kazakhstan. Diamonds found in this manner are generally of poor quality due to the intensive processes it has gone through which it is passed (Thomas, 1991). Meteorites have also been credited to formation of small deposits of diamond. The quality of these diamonds is generally of lower density. Some diamonds are estimated to form from extra terrestrial formations. There is possibility that most of the diamond in Africa and some parts of North America were formed in such processes.

Cutting of Diamond

For industrial and synthetic uses, diamond is passed through several processes. Natural diamond is normally rough. Due to its hardness, a lot of heat energy is needed to enable cutting. The cutting process includes laser cutting, sawing, cleaving and the final process of polishing. When cutting, the intention is to enhance the quality of diamond without losing a lot of quantity. About half of diamonds quantity is normally lost during cutting. The first step involves examination of the stone t determine the points of crystal weakness(Thomas, 1991). The cutter determines the planes that can easily be cut via sawing and cleavage. Present day cutters normally utilize the laser beam in achieving cleavage rather than traditional cleavage. The final process involves polishing the cut stone. The stone is considered polished when all of the facets are polished.

Judgment of Quality

When a diamond is used for jewellery, the properties that buyers should consider are clarity, color, carat weight and cut (Boser, 2008). Diamonds containing tainted colors of brown and yellow are considered of low value while special colored stones with tinges of green and orange, blue and red are considerably rare and hence of high value. Clarity is determined by presence of blemishes or not. Absence of blemishes ensures that the diamond cut is of great clarity. The carat weight is an attribute to the size of the diamond. The metric carat normally used for measuring diamond is approximately 0.2g. The cut quality reflects the quality of the processes of cleavage and polishing.

Uses of Diamond

Almost 80% of diamond normally contains impurities which lowers its color quality required in jewellery making. Most of it is used for manufacturing purposes. Since it is extremely hard, the metal is used in making hardy drill bits for cutting devices and in making surfaces that can withstand extreme shock (Thomas, 1991). Scientifically, it is used in photo detection and radiation and in experiments involving high pressures and temperatures.

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Paste of diamond widely used in industrial requirements for polishing and sharpening a variety of tools and surfaces. It is mainly used for polishing various metals that includes metal blades and other metal surfaces. Diamond paste is considered as the best way to get the sharpest edge and it is used for sharpen the metal tools. It is not only polish the metal blade but also sharpens the cutting surface. Paste of diamond is suitable for the use of glass, ceramic and mineral surfaces. It is also used for cleaning the surfaces made out of aforementioned materials. The paste of diamond is composite of powdered diamond particles and some kind of liquid that is usually based on water. diamond powder is simply a diamond paste without liquid obligatory agent. For exact application, it may come in syringe or event in small pump- spray bottle.

Many diamond cutters present in the market produce paste of diamond in different size of grits and colours. Colour coding diamond paste can help one to select the proper size of grit for the surface, which is to be polished. They also produce chisel diamond dressers, which is preferred in the place where precise profiling of grinding wheels is needed, by using best quality of natural diamond. Diamond lapping paste is available in different types and in different sized grits. The size of grits is considered in microns. A micron is equal to one millionth of meter. If the size of the grit is smaller then there will be fine, and more sharpened edge. The paste is applied with polishing cloth. Diamond polishing extender fluid is used for distributing the diamond paste on the polishing cloth. This paste is also used with a tool called strop, which is less common. A strop is made from synthetic material. The strop is flat with round edges. The paste of diamond is applied to the blade of the tool and rubbed against the flat surface of the strop. The high evaluation of diamond lapping paste is manufactured by excellent diamond powder along with the suitable components that ensures efficient applications and able to achieve quality results. Diamond paste is available in both water- soluble mediums as well as in oil. For fast polishing of all kind of hard metals and for providing high-class degree of finishing, it is required to have diamond-lapping application. The diamond lapping powder is widely in demand because of its high degree polish requirements by the manufactures of seal, molds, dies, components, and other similar industries.

Diamond paste is needed for polishing and sharpening the various tools and surfaces. It is largely utilized for polishing a variety of metals that comprises metal blades and other metal surfaces. Its function is not to polish the metal blade however also to sharp the cutting surface. It is apt for the utilization of glass, ceramic and mineral surfaces. It is also utilized to clean the surfaces made out of above mentioned materials.

Diamond paste is regarded as the better way to obtain the sharpest edge and it is used for sharpen the metal tools. Diamond lapping paste is existing in diverse kinds and in diverse sized of grits. The size of grits is considered in microns. A micron is equivalent to one millionth of meter. If the grit size is smaller then there will be the fine, sharpen edge. The paste is used with polishing cloth.

Diamond polishing extender fluid is applied to help in distributing the paste of diamond on the polishing cloth. The utilization of paste is happening to be with a tool called strop that is less common. A strop is prepared from synthetic material. The strop is flat and has round edges. The diamond paste is used to the blade the tool that is rubbed against the flat surface of the strop.

Diamond powder is merely a paste of diamond that does not include liquid obligatory agent. For precise application, it may appear in syringe or event in small pump- spray bottle. There are many manufacturers are existed in the market out of them few manufacturers of diamond produced paste of diverse size of grits and colours. Colour coding paste of diamond can make possible to choose the correct size of grit for the surface that is to be polished.

The high assessment of diamond lapping paste is manufactured by outstanding diamond powder along with the appropriate components which make sure well organized applications and capable to attain quality results.

They are accessible in both water- soluble mediums as well as in oil. For fast polishing of all sort of hard metals and for giving high-class degree of finishing, it is requisite to have diamond-lapping application. The diamond lapping powder is extensively in demand due to its high degree polish necessities by the manufactures of seal, molds, dies, components, and other similar industries. Chisel diamond dressers are produced by utilizing best quality of natural diamond and preferred in the place where exact profiling of grinding wheels is required.

When you buy diamond rings, proper knowledge is a must to get a good one. Too many people buy new diamond rings without proper research and study by which they will get cheated easily. When buying engagement ring you should go into market to make detailed study to avoid scams. You must make a search about the price of diamonds and diamond rings in online sites to get idea about common rates. This can help you to identify the market rate and can escape from cheating.

You should ask your all doubts to the jeweler while buying engagement ring. Always ask to see the diamond rate chart and different models. If the jeweler can give you no excuse not to be, then leave immediately. All legitimate jewelers will provide source of a magnifying glass so you can inspect a diamond deeply before making purchase. This is the right of the customer to do so to avoid scams.

You can also ask the jeweler to show the GIA certificate or certificate for diamond AGS.

This is the sign of original quality. If they make excuses or cannot produce that document then there will be something fishy and you must assume the worst and leave, because they probably have something to hide. One may be quality or other may be the price of the product.

Other than these try to avoid synthetic moissanite diamonds if you don’t want that particular item. There are few jewelers will try to scam by pretending they are real diamonds. The head is off, looking through a magnifying glass and if you see double facets or a reflection of the diamond table aligned, then you probably have a moissanite synthetic diamond. Better solution to leave such shops.

There is a good technique to check fake diamonds of cubic zirconia is to see it by placing a newspaper behind the diamond. If it is easy for you to read the fine print, then it’s a fake diamond. A real diamond disperses light so it should not be able to see the impression below it.

Another trick jewelers can shoot you is to show you a yellow diamond and claim that it is a beautiful white diamond, because they show you before a black background, so you cannot easily see the color. You should also see your diamond in front of a white background to detect a yellow color in the stone, and check color code.

You should also avoid scams jewelry store having price which varies from market rate. Some jewelers do not publish a price on their diamond rings; they display a cryptic code which they must decode it for you. This opens the door for deception and lies. If you look stupid, they can give you a much higher price for a low quality engagement ring. Also never go to the jewelry store where exact price tag is not maintained for all items. If you follow all the mentioned points and check the market value before purchasing the Diamond engagement ring you can get a good deal.

Searching for an engagement ring is a very interesting time in any kind of connection. If the groom-to-be can be shopping alone or has taken alongside the bride-to-be, it is crucial which he be educated about the wide variety of engagement rings available prior to making an order. Right now, several young families are generally purchasing vintage engagement rings. Recently, antique along with vintage engagement rings have become very popular.

Indisputably Common for Assertions of affection

When searching concerning estate or perhaps vintage engagement rings, realize that this kind of classification describes everything less than fifty years aged. It several even make reference to a pre-owned diamond ring that has been bought just one year ago. Whenever speaking about a vintage engagement ring, the term “vintage” is generally an expression used being a catchall that really indicates “old ring”.

Antique and also vintage engagement rings are generally well-known for a lot of reasons; they are generally more affordable, effectively constructed, and once obtained they become an immediate heirloom.

These facts alone increase the risk for antique and vintage engagement rings a straightforward cost the majority of young couples which are only starting out and creating a fresh long term collectively. The idea of creating a great treasure because of their long term family members boosts the emotive worth of the actual diamond ring and the shopping encounter.

Presently, your fine art deco style of engagement rings, produced in the 1920-30′s is regarded as the generally bought vintage engagement ring. Antiques rings out of this time frame echo your geometric fashion craze that’s quite popular during this time period in history.

It is not rare to discover vintage engagement rings in which replicate this particular striking style since it is still a well known manner option today. The distinction in between antique and also vintage artwork deco rings could be that the antique is made during that time frame where by a vintage ring is much more probable a duplicate of this trend affirmation.

Constantly Know very well what You’re Buying Prior to deciding to Lay Your hard earned money Straight down

When buying an antique or vintage engagement ring, always evaluate any created information and also gemologist accounts completely. Considering that antique and also vintage engagement rings are often within places such as estate product sales, second hand retailers, online auctions and antique shops as well as jewelry retailers; you wish to insure you are aware most there’s about any band prior to buying the idea.

Make certain that the owner with the diamond ring can provide you with a comprehensive explanation with the vintage engagement ring including the 4-C’s of bijou: coloring, minimize, carat as well as clearness. These areas of the particular ring must be evidently addressed in the composed file. Additionally it is extremely important that this chronilogical age of the actual engagement ring, diamond ring sizing, and also existing condition with the engagement ring become mentioned in any created file. If it’s at all possible, obtain a duplicate with the gemologist survey too.

Prior to repayment, it is just a good option to establish which kind of give back plan the vendor presents if the trouble should materialize with the ring. You would like to make certain that you buy the car is roofed fiscally.

When you begin to shop for your engagement ring, remember that this is an extremely important token of one’s adore along with marriage vows. Therefore, pick the ring a person fall in love with nevertheless be clever in regards to the business element in regards to the sale. Ideally, this is the 1 engagement ring you’ll don for the rest of your health; make certain it is going to remain the test of your time.

Find out the secrets of vintage engagement rings here.