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  • 8/8/2019 Diamond Buyer Guide

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    An I SO-9001-2008 Certified In stitute & Diamo nd Testing Center...

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    HOME COURSES ENQUIRY CONTACMAIN CONTENTS

    BUYER'S GUIDE

    (Learn About Purchasing Diamond, Jewellery & P earls)

    Diamond Buyers Guide

    Jewellery Buyer s Guide

    Pearl Buyers Guide

    Buying a Diamond, Diamond Jewellery or Pearls can be a troublesome and expensiveexperience we know that buying a piece of any jewellery is exciting, but there's a lot to think about. With this buyer'sguide, we will help you to understand Diamonds, Jewellery with Pearls and appreciate their mystique and value.

    1. Diamond Buyers Guide: | | TOP | |

    Before buying a diamond the knowledge of 5-C's (Cut, Color, Carat, Clarity & Certificate) is the most common guide usedfor buying and selling diamonds. As a collectible, one diamond may appeal to one person and not to another. It isimportant that you choose a diamond that satisfies your taste.

    The quality of a diamond is defined by means of the 4Cs: Carat (Weight), Clarity, Colour andCut. These characteristics do not only determine the stones quality, they can also be veryuseful in identifying the diamond, since every diamond is unique.But, before to know more about all the Cs you have to know one more C- Cost (Budget).

    When looking to purchase a diamond, first determine what your price ranges. Stay away fromcompanies that try to tell you what your cost should be based on i.e., monthly income. Yourcost should be based solely on what you feel comfortable with. Most companies will allow you

    to upgrade your diamond in the future and give you a full credit for your original purchase.

    One commonly asked question is how to figure the prices per carat of diamonds. The price of a diamond will reflect rarityfactors as well as overhead expenses of the seller. Some rarity factors depend on size (larger is rarer than smaller), clarity(less imperfections are more uncommon), color (colorless is less frequent) and cut (good proportioning gives greaterbrilliance). Each of these factors is discussed below.

    Cut:

    You have to decide that what shape of Diamond you wants to purchase? The most common shape is round or RBC (roundbrilliant cut). Others are Marquise, Pear, Baguette, Princess, Emerald, Oval, Radiant etc. Formore detail. (Link to diamond shape page)

    The cut of a diamond is very important in determining the beauty of the stone. The cutcomprises of the depth, width, various angles and proportion. A round diamond has 57facets (each cutting part called facet & with individual name). The proportions and finishgrade of a diamond establish the quality of the cut. A good finish grade testifies to theworkmanship of the diamond polisher. It refers to the symmetry of the facets and theiroverall finish. The best cut diamonds also have the right proportions between the different

    parts of the diamond. When the cuts are placed precisely within certain mathematically calculated angle, light that entersthe diamond will be reflected back out of the top in a brilliant prismatic result. If these proportions are not optimal, the fireand brilliancy of the diamond are affected, and undesirable visual effects might occur.

    Apart from the most popular round brilliant cut, there are a range of other frequently used cuts, and one might also comeacross magnificent fancy cut diamonds.

    Round Brilliant Cut and its parts..

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    Carat:

    Colour:

    Describes the amount of colour the diamond contains. This can range from colourless to yellow with slight tints of yellow,gray or brown. Colors can also range from intense yellow to brown. The intensity can vary fromnearly colourless, which is preferable, to decidedly yellow. The value of a white stone is higherthan that of a yellowish stone. However, diamonds can also have a distinct orange, brown, pink,green or blue colour. These colour diamonds can be extremely valuable. If there are natural red,blue or green colours in diamond they more valuable than white.

    Be aware!

    It is possible to influence the color by irradiation treatment followed by heat treatment. This method is not recommendedfor two reasons. The first is the risk involved with exposure to irradiated objects. The second is the risk of color changeover time. All color treated diamonds must be disclosed as such prior to sale.

    Contrary to popular belief, a diamond appears not only in the typical colorless or near colorless form, but actually variesfrom "white" to a "light yellow" color. Graded on an alphabetical scale, the color grade begins at D and ends at Z. However,fancy colored diamonds are graded on a completely different scale.

    Clarity:

    The clarity of a diamond is determined by the number, size, brightness and location of the internal and external characteristics, important structure phenomena and

    transparency. Generally speaking, mainly the inclusions in the stone affect the clarity.Obviously, the fewer inclusions or structure phenomena the stone displays, the higherthe quality of the diamond.

    Grade Meaning DefinitionFL Flawless Free from all inclusions or blemishes

    under 10x.IF Internally Flawless No inclusions visible at 10x

    magnification.VVS-1 Very-Very Slightly

    Included -1Inclusions those are extremely difficult

    to locate under 10x.

    VVS-2 Very-Very SlightlyIncluded -2 Inclusions those are very difficult tolocate under 10x.VS-1 Very Slightly Incl uded

    -1Minor inclusions that are difficult to

    locate under 10x.VS-2 Very Slightly Incl uded

    -2Minor inclusions those are somew hat

    difficult to locate under 10x.SI-1 Slightly Inc luded -1 Noticeabl e inclusi ons those are easy to

    locate under 10x.SI-2 Slightly Included -2 Noticeable inclusion those are very

    easy to locate under 10x.I-1 Included -1 Obvious inclusions. Somewhat easy to

    locate with the u naided eye.I-2 Included -2 Obvious inclusions. Easy to locate with

    the unaided eye.

    I-3 Included 23 Obvious inclusions. Very easy to locate.

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    Carat refers to the weight of a diamond. Carat is the 5th part of a gram. A carat is furthersubdivided in 100 cents (sometimes called - points). The value of diamond is depends on its size. The bigger diamond ismore valuable as smaller pieces. For more detail. (Link to diamond page Carat)

    Certificate - The 5th C:

    Another important thing to consider in purchasing or selling a diamond is the diamond certificate or grading report. It is avital document that proves the authenticity and quality of the diamond being bought or sold.

    A highly trained diamond grader evaluates and specifies the attributes of the diamond. Mostof the people dont know 4Cs of diamonds. The Certificate provides genuine details of adiamond issued by any Neutral Organisation. Learn more (link to lab page)

    Valuation:

    All 4Cs are taken into consideration at the time of diamond valuation. Diamond with goodCut, Colour, Clarity and Carat weight is the most critical factor in determining price. Apartfrom the scarcity of the bigger stones is that while fashion and local taste may effect thedesirability of colour and the extreme rarity of the truly flawless diamond increases thedemand for slightly less perfect stones, weight remains the only constant and easilycalculable factor under the grading systems most commonly used today. There is oneadvantage in seeing a diamond in its setting and that is setting itself may provide a valuabledue to the nature of the stone.

    To valuate a diamond you can refer a Goyam Trade Rates . It is upgraded frequently.

    How to Clean & Care of Diamonds? For more detail .

    2. Jewellery Buyers Guide: | | TOP | |

    Diamonds are considered as the women's best friend. Rather wemust say that any piece of jewellery can bring smile on any womensface. But sometimes it may happen that a jewellery piece whichlooks extremely good and impressive can be disheartening in termsof size reason can be that you couldnt find the right size. But, this isnot a bigger problem as you can find right jewellery in many

    jewellery stores, and in online jewellery shopping sites.If you are planning to purchase any type of jewellery, here are fewthings for make purchase easy.

    Something about Gold:

    Gold will not tarnish or rust. Gold is very strong, but also very malleable. Pure gold or 24karat gold is too soft for jewelry andcannot handle the stress of wearing. Gold is alloyed with a mixture of deferent metals to give it greater strength. When goldalloying with other metals; gold purity is deduct as 22, 20, 18, 16 karat. Following is a chart of different karatage (noted by

    k): more about gold. (Link to Metal page Gold)

    24k 99.99 % Pure Gold: Too soft for jewellery.23k 95.80 % Gold: Used for special work jewellery like Kundan, Thewa etc.22k 91.67 % Gold: Used for only gold jewellery.20k 83.30 % Gold: Used for only gold jewellery.18k 75.00 % Gold : Used for gems or stone studded Jewellery.14k 58.50 % Gold: Also used for diamond Jewellery.

    Most Indian only gold jewelleries are made from 22k or 91.6% gold and diamond studded jewelleries are made from 18k or75% gold. You can purchase gold jewellery with Hallmarking Certificate and with Diamond GradingReport (Diamond Certificate) for surety of gold purity and diamond quality.

    The price of gold is determined by the karat weight and labor charges are depending on the jewellery article. For right valueof diamond you can refer Goyam Trade Rates . It is upgraded frequently.

    How to Clean & Care of Jewellery? For more detail .

    3. Pearl Bu yers Guide: | | T OP | |

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    Beautiful, mysterious and eye capturing cool gem. This evergreen gem is a greatest creation of nature, found from oyster,

    called mother of pearl. Before to purchase them first understand them how to graded and valued. This guide is helping youto understand that how pearls are graded and valued is important before purchase a pearl jewellery purchase. This guideprovides information consumers can use to compare and evaluate pearls and pearl jewellery.

    What is the right value of Pearl? How to valuate it?

    The terms used to describe the quality and value of a pearl or pearl set is given below.

    Type: There many types of pearls available in market, but most popular, in order of value are Freshwater,Tahitian, Akoya, South Sea, Iceland and Culture Pearls. Size: Pearls in size range is up to 15 millimeter and over, depending on type. Pearl as larger as more valuablethan small size.

    Luster: Luster is the brilliance or glow of light from a pearl. A high quality pearl will be brilliant and bright, andyou should be able to easily see your own reflection in its surface. Never sacrifice lustrousness. It is the visual factormost responsible for giving a fine pearl its unique beauty and character. Simply defined, luster is the sharpness andintensity of reflected light on a pearls surface.

    Nacre: Pearls are made from the layers of aragonite and conchiolinbuilt around the centre of pearl, called Nacre. Nacre is the same crystallinesubstance that forms the beautiful shell linings we call mother of pearl. If enough layers form, and the crystals align, a prism-like effect occurswhen light passes through the layers. This effect causes orient, a softiridescent glow which looks like a diffusion of light from inside the pearl.

    Surface Perfection: Surface perfection is always required, butrarely encountered. And when you find it, it comes at a very high price.People were always searching for pearls with a skin as free of minorwelts, blisters, pimples, cracks and bumps as possible. But blemish-freesurfaces are rare. Our eyes are trained to avoid large and numerous,

    and give attention to on few and small. Ideally, we hide blemishes in a jewelers drill hole or in a setting. Whenexamining a pearl for unsightly imperfections, check it out under both diffused and bright light sources you will see acracks or any blemish on the surface.

    Shape: Pearls come in a number of different shapes included Round, Semi-Round, Oval Baroque, Ringed, Tear-Drop, Pear, Kesi, Mabe, Button shaped and irregular shaped. From these perfect round is always been the ideal. If they are with blemish-free and with good luster they are rare and very costly.

    Colour: Pearls are available in a wide array of colors. The most common include white, cream, silver, gold,rose, peach,, rosaline, burgundy, green, bronze, gray, black and brown. The color encompasses threecharacteristics:

    Body color the most prevalent color of the pearl.

    Overtone the luminous color that is in a layer over the body color, and when concentrated on the edgesof the pearl is referred to as the halo.

    Orient just below the surface of the pearl is this prismatic layer of coloring.

    Not all pearls demonstrate all three color characteristics.

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    Matching Sets: The ability of a set of pearls to be similar to or match with each other is referred toas identical. The better the matching, the greater the value of the piece of pearl jewelry. Of course,matching only applies to studs & multi-pearl jewellery.

    All of these characteristic are used to decide the quality and value of pearls and pearl jewellery. By knowing andunderstanding these, you are in a better position to know what to look for and what you are purchasing.

    How to Clean & Care of Pearls and Pearl Jew ellery? For m ore detail.....

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