Diamond Glossary - Laser Drill Hole, Light Yellow, Loupe, Luster

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	Diamond Buying Made Easier > Diamond Glossary > Diamond Glossary- L Diamond Glossary - Laser Drill Hole, Light Yellow, Loupe, Luster This is our diamond glossary of terms used in the diamond jewelry business.... facts about diamonds- Click a letter to view terms - A B C D E F G H I J K L M N O P Q R S T U V W X-Y-Z - All Diamond Glossary - L L: A grade in GIA's Color Grading System.... in the middle of the "Faint Yellow" category. Laser Cutting: Diamond has different directions that it can be cleaved, sawn, and polished. Using a laser to cut the diamond into an unusual shape is now possible. A laser can cut across the growth plains, which makes odd shapes such as letters, Christmas trees, tennis rackets, horse heads, etc. possible. Laser Drill Hole: A hole is a tiny tunnel drilled into a diamond by a laser beam. The tunnel extends from the surface of a diamond down to a dark included crystal. The diamond is laser drilled in order to lighten a dark included crystal. After the diamond has been drilled the inclusion can be then bleached and become less noticeable. It might improve the clarity grade of the diamond but it usually will make a diamond much more marketable having a lightly colored inclusion verses a much more obvious darker inclusion. GIA's Gem Trade Lab will issue a diamond grading report on diamonds that have laser drill holes (without any fracture filling) because the holes are permanent features and they will note the laser drill holes under the comments area of the report. Laser Inscription: An extremely small inscription by a laser along the girdle of a diamond. This can be the diamond grading report number, a logo, a message, or a company's name. Length-to-Width Ratio: A ratio of how many times greater the length is in comparison to the width of a fancy shape diamond. Each fancy shape diamond has a range of ratios that are acceptable by most people. There is no "ideal" L to W ratio.... some are considered to be more appealing but it does turn out to be a personal preference. Leveridge Gauge: A commonly used device to measure the precise dimensions of a mounted or unmounted gemstones. Light Yellow: A trade term used by some dealers to cover a wide range of colors in the low end of the diamond color-grading scale. Diamonds with a "touch of warmth". Lively Stone: A diamond that has a reasonably good cut so that it has good brilliance and luster. Lot: A large group of diamonds that have been closely matched in clarity, color, cut, and weight.... these diamonds are being offered for sale as an entire group and not piece by piece. Loupe: A handheld magnifying glass used in the diamond trade to inspect diamonds. Magnification is usually 10X power and is corrected so as not to distort shapes and color. All diamonds are clarity graded under 10X. Loupe Clean: When viewed under 10X magnification, a diamond is considered loupe clean if no obvious inclusions are immediately seen. Lower Girdle Facets: These are triangular shaped facets, located on the pavilion just below the girdle. Luster: The quality and quantity of reflected light from the surface of a gemstone. Because of its hardness, diamond has an "adamantine luster". Return to top of the diamond glossary page James Allen has a *very* interesting diamond website. They have..... one of the *largest* and *best* selections of loose diamonds around, their loose diamond prices are usually the lowest anywhere on the net, they have top notch customer service, and best of all they are the only online diamond retailer with actual pictures of the diamonds they sell. Seeing is believing! Check it out for yourself.... click here!	If you need some help with a diamond decision, all you have to do is ask! Free one on one diamond buying consultation... Get widget for your site
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