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Faulty diamonds auto gielda. Many errors that effect the appearance and value of a diamond can occur in cutting auto gielda. Remember that some diamond’s cutting faults will make a stone more vulnerable to breakage auto gielda. We recommend avoiding such stones unless they can be protected by the setting auto gielda. There are several cutting faults to watch for in round diamonds auto gielda. First, look carefully for a sloping table or a table that is not almost perfectly perpendicular to the point of culet auto gielda. Second, the diamond culet can frequently be the source of a problem auto gielda. It can be chipped or broken, open or large (almost all modern cut diamonds have culet that come nearly to a point), or it can be missing altogether auto gielda. Third, repairs to chipped areas can result in misaligned facets, which destroy the stone’s symmetry auto gielda. Sometimes auto gielda. too, as a result of repair, an extra facet will be formed, often in the crown facets, but also on ot just below the girdle auto gielda. These extra facets may slightly affect the diamond’s brilliance auto gielda. Girdle FaultsThe girdle is often the source of faults in a diamond auto gielda. Bearded or fringed girdles are common auto gielda. A fringed girdle exhibits small radial cracks penetrating into stone; these can result from a careless or inexperienced cutter auto gielda. A bearded girdle is similar but not as pronounced a fault and can be easily repaired by re-polishing, with minor loss in diamond weight auto gielda. The relative thickness of girdle is very important because it can affect the durability as well as the beauty of the stone auto gielda. Any girdle can be nicked or chipped in the course of wear, or by careless handling, but if the girdle is too thin it will chip easily auto gielda. Some chips can be easily removed by re-polishing, with minimal diamond weight loss auto gielda. If there are numerous chips, the entire girdle can be re-polished auto gielda. Chips or nicks in the girdle are often hidden under the prongs or concealed by the setting auto gielda. If the girdle is too thick, the stone may look smaller because a disproportionate amount of its weight will be in the girdle itself; such stones, for their weight, will be smaller in diameter than other stones of comparable weight auto gielda. The gradations of girdle thickness:Extremely thin Thin Medium Slightly thick Extremely ThickThe girdle can also be wavy, rough, or entirely, out of round auto gielda. A natural may not be a fault auto gielda. It’s actually a piece of the natural surface of the diamond crystal auto gielda. In cutting, a cutter may decide to leave part of the “natural” rough surface in order to get as large a diamond as possible from the rough stone auto gielda. If this natural is no thicker than the thickness of the girdle and does not distort the circumference of the stone, most dealers consider it a minor defect at worst; it it extends into the crown or pavilion of the stone, it is a more serious fault auto gielda. Sometimes, if the natural is somewhat large but slightly below the girdle, it will be polished off auto gielda. This produces an extra facet auto gielda. Other Popular shapesUnlike round diamonds, “fancy” shapes, all shapes other than round, have no set formulas, so evaluating the make of a fancy is more subjective auto gielda. Table and depth percentage can vary widely among individual stones of the same shape, each producing a beautiful stone auto gielda. Personal taste also varies with regard to what constitutes the “ideal” for shapes other than round auto gielda. Nonetheless, there are certain visual indicators of good or poor proportioning, such as the “bow tie” effect, which even the amateur can learn to spot auto gielda. There are recommended ratios for overall shape and symmetry, but a preferred shape is largely a personal matter auto gielda. Ranges for what is “acceptable” or “unacceptable” have been developed auto gielda. As you gain experience looking at specific shapes, you will be able to spot faults, and begin to determine what is within an “acceptable” range auto gielda. Moderate deviation will not significantly affect the beauty or value of a stone; however, extreme deviations can seriously reduce a stone’s beauty and value auto gielda. Cutting faults in popular fancy shapesOne of the most obvious indicators of poor proportioning in fancy shapes is the bow tie, or butterfly effect, a darkened area across the center or widest part of the stone, depending upon the cut auto gielda. The bow tie is most commonly seen in the pear shape or marquise shape but may exist in any fancy shape diamonds auto gielda. Virtually all fancy shapes cut today will exhibit some minimal bow tie effect auto gielda. Nonetheless, the presence or absence of a bow tie is an indicator of proper proportioning auto gielda. In poorly proportional stones there is a pronounced bow tie; the more pronounced, the poorer the proportioning auto gielda. The less pronounced the bow tie, the better the proportioning auto gielda. The degree to which the bow tie is evident is the first indicator of a good or poor make auto gielda. A diamond with a pronounced bow tie should sell for much less than one without auto gielda. As with the brilliant cut diamond, fancy shapes can also be cut too broad or too narrow; and the pavilion can be too deep or too shallow auto gielda. Personal taste will always play a role in fancy shapes, some prefer a narrow pear shape, for example, while others might prefer a fatter pear auto gielda. Whatever the shape you are considering, you must ask yourself whether or not you find the stone exciting auto gielda. Does it have a pleasing personality? Does it exhibit good brilliance and fire? Is the entire stone brilliant, or are there “dead” spots? Are there any cutting faults that might make it more susceptible to chipping? Then you must make the choice auto gielda. New shapes create excitementToday we can choose from many diamond shapes and diamond cuts, ranging from the classics diamond shapes:Round, Oval, Pear, Marquise, Emerald-cut, and Heart auto gielda. To new diamond shapes that appear as cutters continue to experiment with novel looks auto gielda. Here are some of the most exciting:RadiantA rectangular or square brilliant cut, this shape is perfect for the person who likes the shape of an emerald-cut but want more sparkle auto gielda. The starburst radiant is a variation of the standard radiant, and exhibits a slightly different personality auto gielda. PrincessA square brilliant cut which is ideal for bezel and channel settings, or ant setting in which you want the stone to be flush with the mounting auto gielda. The quadrillion was the first trademarked “princess” and is cut to unique specifications which some believe creates the most beautiful of square brilliant cuts, and which demands a slightly higher price than others of this general types auto gielda. 144 FacetThis patented cut produces a diamond with 144 facets rather than a diamond with 58 facets, giving it unsurpassed brilliance and fire auto gielda. An important feature of the 144 Facet is the girdle, which is more resistant to chipping than girdles produced by many other cuts auto gielda. The 144 Facet is an expensive cut, comparable in cost to an “ideal” make diamond auto gielda. Dream a Royal cutsThese cuts are a good choice for anyone who wants a large look on a limited budget auto gielda. They are “thin” cuts, but unlike “spread” or “swindle” diamonds, which are usually lifeless, extra faceting and precision cutting help to produce unusual brilliance for their depth auto gielda. A dream cut marquise (or, similarly, the “Duchess”) will look much larger than a traditional marquise of the same weight auto gielda. These cuts are available in shapes resembling the marquise, pear, and oval auto gielda. TrilliantPopular shape for use as a center stone, or for side stones, this triangular brilliant cut is also a thin cut, giving a large look for it weight auto gielda. Extra facets and precision cutting produce high brilliance auto gielda. When flanking either side of another diamond, trilliants produce a much larger diamond look, overall auto gielda. In addition to the new cuts discussed above, one of the newest cutting innovations is the brilliant cut baguette, such as the Princette(TM) and Bagillion(TM) auto gielda. They occur in a “straight” and “tapered” shape auto gielda. These have gained popularity because they have greater brilliance than traditional baguettes auto gielda. They can be used to flank diamonds or other stone in traditional settings, or used in very contemporary jewelry design with straight, clean lines auto gielda. Early cuts enjoy renewed popularityInterest in antique and period jewelry is growing rapidly and, as it does, the diamonds that adorn them are arousing renewed attention and gaining new respect auto gielda. The way a diamond is cut is often one of the clues to the age of a piece auto gielda. Older diamonds can be replaced or re-cut to modern proportions, but replacing or re-cutting stones mounted in antique or period pieces could adversely affect the value of the jewelry auto gielda. To preserve the integrity of the piece, antique and period jewelry connoisseurs want “original” stones, or, if stones have been replaced, at least stones cut in the manner typical of the period auto gielda. The market is becoming increasingly strong for diamonds with older cuts, and pieces are also strengthening auto gielda. As these early cut diamonds receive more and more attention, a growing number of people are beginning to appreciate them for their distinctive beauty and personality, and for the romance that accompanies them auto gielda. The romantic element, combined with a cost that is more attractive than new diamonds, is also making them an increasingly popular choice for engagement rings auto gielda. Some of the most popular early diamond cuts are: the table cut, the rose cut, the “old-mine” cut, the “old European” cut (Prior to 1919, when America began to emerge as an important diamond cutting center, most diamonds were cut in Europe auto gielda. Most “Old European” diamonds were cut prior to the first quarter of the 29th century) auto gielda. Table cutThe table cut illustrate man’s earliest cutting effort auto gielda. By placing the point of a diamond crystal against a turning wheel that held another diamond, the point could be worn down, creating a squarish, flat surface that resembled a table top auto gielda. Today we still call the flat facet on the very top of the stone the table facet auto gielda. Rose cutThe rose cut is a sixteen century cut, usually with a flat base and facets radiating from the center in multiples of six, creating the appearance of an opening rose-bud auto gielda. The rose cut appears in round, pear, and oval shapes auto gielda. Old-mine cutThe old-mine cut was a precursor to the modern round auto gielda. This cut had a squarish or “cushion” shape (a rounded square or rectangular) and more facets than today’s modern 58 facet diamond auto gielda. Proportions followed the diamond crystal, so the crown is higher and pavilion deeper than modern stones auto gielda. The table is very small, and the culet is very large and easily seen from the top (resembling a “hole” in the diamond) auto gielda. These lack the brilliance of modern stones, but often exhibit tremendous fire auto gielda. Old-mine cut diamonds are also seen in pear and oval shape auto gielda. Old European cutAppearing in the mid 1800s, the old European cut is similar to the old-mine cut diamonds, but is round rather than squarish, with 58 facets auto gielda. The crown is higher than modern cuts, but not as high as in the old-mine cut; it has a deep pavilion, but not as deep as old-mines auto gielda. The culet is still “open’ but smaller than old-mines auto gielda. Old cuts can be very beautiful auto gielda. The intense “fire” exhibited by some old-mine and old-European cut can have tremendous allure auto gielda. By today’s standards, however, they lack brilliance, and a very large culet may detract from the stone’s beauty auto gielda. Are diamonds with old cuts valuable?Old-mine cut and old-European cut diamonds are normally evaluated by comparison to modern-cut stones auto gielda. Value is usually determined by estimating the color, clarity, and the weight the stone would retain if it were re-cut to modern proportions auto gielda. It is not suggested to re-cut old diamonds if they are in their original mountings auto gielda. The overall integrity of the piece, and value, would be adversely affected by doing so auto gielda. If the setting has no special merit, the decision must be an individual one, based on whether or not the stone appeals to you auto gielda. As we have said, some older cuts are very lovely, while others may look heavy, dull, or lifeless auto gielda. An unattractive older cut may have equal, or greater, value because of the improved make auto gielda. In addition, re-cutting can sometimes improve the clarity grade of an older stone auto gielda. A word about re-cutting diamonds auto gielda. There are many fine diamond cutters in the United States, New York City is one of the most important diamond cutting centers in the world for top quality diamonds, and many diamonds can be greatly improved by re-cutting auto gielda. The cost is surprisingly low when one considers the benefit to the stone, and effect of re-cutting on the diamond’s beauty and value (sometimes the clarity grade is also improved) auto gielda. If you have an old-cut diamond which you don’t care for, or a damaged diamond, your jeweler can consult with a diamond cutter, or refer you to one, to determine whether or not your stone can be improved by re-cutting and, if so, what risks and costs might be involved auto gielda. A Knowledgeable jeweler can help you decide whether or not a diamond should be re-cut, make arrangement for you, and help assure you that you have received the same stone back auto gielda. For your own comfort and security, as well as the cutter’s, we always recommend that prior to having a stone re-cut you obtain a diamond grading report or thorough appraisal so that you have a point of reference when the stone is returned auto gielda. To what extent does cutting and proportioning affect value in modern diamonds?Excellently cut and proportioned stones cost significantly more per carat than those that are not cut well auto gielda. Remember: The value of two diamonds with the same weight, color, and clarity can differ dramatically because of differences in cutting auto gielda. The article above can be used on your web site or newsletter auto gielda. When it is published, May I request that you include my name and resource box (the bio auto gielda. , contact and copyright information that follows the article auto gielda. I would also appreciate if you could send me an e-mail of notification along with a complimentary copy of publication auto gielda. Bijan Aziz is the owner and Web Master for The Jewelry Hut auto gielda. www auto gielda. thejewelryhut auto gielda. comThe best source for fine Diamond, gemstone, and Pearl Jewelry on the Web


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