![]() 34 ct Larger Diamonds are worth more than proportionally smaller ones, meaning a 3 ct Diamond surpasses the value of three 1ct Diamonds.ĭiamonds (as well as other precious colored gemstones) are often sold together with a certification document that lists comprehensive details about the stone, especially their 4 C's. For example, a stone weighing 34 pt weighs. Each point is one/one hundredth of a carat. Another weight measurement sometimes used for small for Diamonds is the point measurement (abbreviated as pt). A carat is equivalent to 0.2 grams (about 0.007 ounces). The size of a Diamond is measured in carats (abbreviated as ct). Very large inclusions visible to the naked eye Large inclusions visible to the naked eye Larger flaws or inclusions easily visible at 10x Larger flaws or inclusions visible at 10x Very tiny flaws or inclusions visible at 10x magnificationįlaws or inclusions visible at 10x magnification No flaws or inclusions at a magnification of 10x Letters are assigned to a stone to label the quality of its clarity: Much planning must be taken before cutting a Diamond, as a slight error in the facet may significantly decrease the value of the stone.Ĭlarity is graded on the size and visibility of the flaws and inclusions. Sometimes this cut cannot be given, either because of flaws or cleavage habits. The most prevalent cut is the brilliant cut, a facet specially designed to bring out the most fire in the stone. The cut, or facet of the Diamond, is the shape and style in which it is cut. (The bar is not limited to yellow it may also be yellow-brown, and is not necessarily accurate as monitor saturation may vary.) The letter Z in the color grade of a Diamond may sometimes be used to indicate a fancy Diamond. The color bar below depicts the letter and the color saturation it represents. The letters between D and Y describe the color, depending on the amount of yellow saturation. Y indicates an intense deep yellow or deep yellow-brown. D is totally colorless, without a hint of any other color. This scale measures the color saturation, ranging from absolutely colorless to deep yellow (or yellow-brown). The color of a Diamond is graded on an alphabetical scale ranging from the letters D to Y. These four grading systems are known as "the four C's", in which all Diamonds are evaluated: Diamonds are also difficult to polish due to their hardness - they can only be polished with special Diamond saws that have a thin layer of Diamond on the saw blades and edges.Ī grading system, instituted by the GIA, was implemented to evaluate Diamonds based on four aspects. This resistance lends it the ability to withstand daily wear and tear beyond the capabilities of most gemstones. Because of its hardness, a Diamond is immune to scratching, as the only thing that can scratch it is another Diamond. The immense hardness of Diamond contributes to its suitability and importance as a gemstone. A flawless Diamond is exceptional, as most Diamonds gemstones contain some level of flaws, even if they are very minute. The vast majority are either opaque and not gem quality, or are too heavily flawed. Roughly twenty percent of Diamonds mined are used in jewelry, as most are unsuitable for gemstone use. (For additional information on fancy Diamonds, please visit our Colored Diamond Shoppers Guide and our article titled " How are Natural Fancy Colored Diamonds Created".) Black Diamonds, which are more common and less expensive, are occasionally faceted as opaque yet shiny gems. "Fancy", the term used to describe any deeply colored Diamond, not only includes the more common yellows and browns, but it also is used to describe the very rare tones of red, pink, purple, blue, and green. Fancy yellow Diamonds have recently increased in popularity in jewelry. Although light yellow tinting is frowned on, a deep yellow color renders the Diamond as a fancy. PerfectlyĬlear Diamonds are much more valuable than their lightly tinted counterparts. Light tint, usually yellowish or brownish. ![]() The most typical color used for Diamond jewelry is colorless. Since that time, many new significant worldwide deposits have been discovered, and since then the popularity of Diamond has grown tremendously due to increased supply and technological advances in cutting. Small amounts of Diamonds were also found in Brazil in the 1700's, but it wasn't until the 1870's that the vast Diamond fields of South Africa were discovered and exploited. However, their only significant source was in a limited supply in the alluvial river deposits of India. Dodecahedral Diamonds and Borts exhibit poor cleavage or no cleavage at all.ĭiamonds have been known and treasured as gemstones since ancient times. Colorless, Blue, Red, Green, Yellow, Orange, Brown, Pink, Purple, Gray, Blackġ, all sides - octahedral.
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