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Facts & Figures About Diamonds |
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Please take a moment to browse through our DiamondsHere terminology and definitions page to assist you in becoming more familiar with a comfortable amount of terminology used within the fine jewelry and gemstone industry. At DiamondsHere, we believe in educating our clientele and providing them with current facts and information to ensure of always making the perfect purchase, and in return...acquiring jewelry and gemstones that will provide years of enjoyment! R.B.C. Abbreviation for Round Brilliant Cut, this is an abbreviated term which can apply to all gemstones with this type of cut. CERTIFICATION Generally applies to any 3rd (third) party grading service, which provides authentication and grading of a gemstone...a "third party" grading service can provide a true unbiased opinion, where as an "in-house" certification or appraisal may be biased. DIAMOND EARRINGS-What you should know. One of the most common questions we hear everyday at DiamondsHere.com pertains to "what should be considered a nice quality for diamond ear studs." Our opinion at DiamondsHere is simple, we recommend using the following list as a guideline when shopping for your diamond studs.
E.G.L.(tm) European Gemological Laboratories A very popular grading and authentication service with locations in Los Angeles and New York. You will see their services as EGL-LA. (meaning Los Angeles lab.) 5-C's Pertains to definitively describing a gemstone. In example, #1. Cut #2. Carat size #3. Color #4. Clarity # 5 Certification P.S. The Diamond Industry should also consider including a 6th C representing Cost! Tolkowsky Cut Refers to Russian Physicist Dr. Tolkowsky who in 1919 determined the "ideal" cutting proportions for a round diamond by mathematical calculation. The European Gemological Laboratories (tm) recognizes Dr. Tolkowsky's brilliant work and so denotes on the grading report when a diamond has been cut to these precise proportions. Rapaport Diamond Report (tm) Mr. Martin Rapaport is universally recognized as the sole revolutionary responsible for bringing a reliable and industry acceptable pricing structure to the diamond trade. Residing in New York City, Mr. Rapaport's company provides the industry via an annual subscription (to the trade only) a wonderful magazine full of cutting edge industry articles as well as current pricing information. IDEAL CUT A perfectly dimensioned cut diamond...these dimensions often vary within the grading services, however, they all agree that this defined cut provides the maximum brilliance in a diamonds structure. Comments: to a seasoned veteran of the diamond industry...CUT is first and foremost in the grading of any diamond. There are many diamond cutters and brokers that deal exclusively in "ideal" or "boutique" cuts such as "hearts and arrows(tm)" . HEARTS & ARROWS IDEAL CUT DIAMOND The trademark of the Hearts and Arrows Ideal Cut Diamond is a magnificent sharp and crisp Hearts and Arrows pattern, an effect depicting Arrows in the top view of the diamond and Hearts from the bottom view. Found only in round cut diamonds, the effect is breath-taking and can be seen by anybody when provided with a simple gem-scope - even if you know absolutely nothing about diamonds! MAKE: Generally refers to the shape of a gemstone and how well it has been cut. CARAT (ct.): Word used to describe the specific weight of a diamond, for example, 1 carat = 100 pts. 1/2 carat = 0.50 pts. KARAT (kt.): Word used to describe the specific gold content, for example we often see 10kt, 14kt, and 18kt, scientifically this is telling us that 14kt consists of .585% actual gold content. CT. TW.: Indicates to us "total carat weight" as generally implied when we are talking about the total weight of all the diamonds in "one" particular jewelry piece. POINT: There are 100 points in 1 carat, example 25 points = .25carats and may be referred to as a 1/4 carat diamond. MELEE: Generally refers to diamonds or gemstones of .08 cts and smaller in carat weight, ie., .01ct. thru .08ct. in weight. These are usually what the industry will also call "accent" diamonds. FLUORESCENCE: The property of changing the wavelength of radiation to one in the visible range; for example, the visible wavelengths emitted by a material when excited by invisible radiation (such as x-rays), as well as by certain visible wavelengths. FLAWLESS: A gemstone or diamond absent of any inclusions within it's structure...an imperfection free, perfect clarity diamond! FIRE: Flashes of the different spectrum colors seen in diamonds and other gemstones as the result of light dispersion. |
