St. Rita Necklace with Cord, 2 x 1.5" - MADE IN ITALY Product Brand : Necklaces - Religious |
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The first C, "cut," refers to how the solitaire has been cut by a jeweler. Even the most beautiful gem starts out as a rough stone with no facets. The way in which a gem sparkles and reflects light is dependent on how the facets are cut into it. The cut is one of the largest determinants of a stone's value. An perfect cut can turn a the right raw gem into a stone worth thousands or even millions of dollars, while a poor cut may ruin even an perfect gem. Since a cut cannot be undone and gemcutting takes years to master, the value of the cut cannot be underestimated.
Lab Made Pendant
The next two Cs, "clarity," and "color" are carefully by impurities in the gem's crystal structure. Small mineral deposits that appear as darker spots in the stone, called inclusions, are common. Inclusions do not necessarily ruin a gem; very few mined stones are given a grade of "flawless," and those few are incredibly expensive. Only the lowest clarity grades highlight inclusions that are as a matter of fact seen by the naked eye, and a good cut can help to conceal small inclusions and bring out the best of the stone.
The purest of diamonds have no tinge of color. "D" denotes colorless, and the grading goes all the way to Z for light yellow. The supplementary down the alphabet you go, the less desirable and thus, less expensive, the stone becomes. However, the right concentration of mineral impurities within the stone can be a good thing! These can create the rare colored, or "fancy," gems that highlight lively colors, together with vibrant and intense yellows, pinks, champagnes and even deep blues like the sublime Hope Diamond. The more vibrant or deep the color, the more considerable the gem becomes. Very few gem-quality mined diamonds perform the "fancy" grade.
The final C used to grade mined stones is carat size. Carat denotes the weight of the stone, regardless of its dimensions, and is a standardized part equal to.2 grams. During the 1800s, a few rare gems of over 100 carats were discovered in remote South African mines. However, most gems used in jewelry range from.25 carats to 5 carats in size. The largest stones in this range are quite rare and very expensive. Carat weight increases a gem's price 10-20% for each step in size difference.
The fifth C, "created", only applies to artificial stones. These cultured diamonds are produced in a lab by accelerating the natural processes which create gems. artificial gems are free of inclusions because they are created under controlled conditions. However, most of them have vibrant colors that rival the most desirable and rarest mined "fancy" gems. They are indistinguishable from natural stones in their chemical makeup and visual qualities, and can be cut just like mined stones to furnish the same luster, brilliance and scintillation.
Cultured gems are also created in first-world laboratories and minimize the ecological impact of mining and the social impact that comes from the sale of so-called "blood diamonds." With all of these advantages, from quality to social concerns, it's not surprising that artificial diamonds are quickly becoming very popular.
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The 5 C's of diamond Rating - Cut, Clarity, Color, Carat and Created Diamonds No URLRelated : We have selected quality products for you here Gold In Ct Steve Madden Partyy Pump
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