Graduate Diamonds, 210 Clock Hours, 235,000, 42,300, 277,300, 30,000, 307,300, 20,000, 287,300. Graduate Colored Stones, 570 Clock Hours, 465,000 leon mege diamond color GIA grade scale comparison The GIA is the absolute authority on all aspects of diamond grading. For in-depth information, a visit to the If you've ever looked for a diamond to buy, perhaps you've come across the widely used color grading scale of the GIA (Gemological Institute of America). GIA describes colour in terms of hue, tone and saturation, whereas the Argyle colour grading system is separated into three hues, with the descriptors In the 1940s and '50s, GIA developed the 4Cs and the GIA International Diamond Grading System™ to objectively compare and evaluate diamonds.
Almost all diamonds are graded for clarity using the 11 point diamond clarity scale created by the GIA, including diamonds which were not actually graded by GIA (every Lumera Diamond is GIA certified).In grading diamond clarity, the GIA considers the number, size, color, reflectivity, and position of every flaw visible under 10x magnification.
GIA Diamond Origin Report The new GIA Diamond Origin Report contains all the unbiased, accurate data of a Diamond Grading Report, plus GIA’s scientific determination of the diamond’s country of origin and a microscopic laser inscription of the report number on the diamond’s girdle. The GIA grades diamonds on a scale of D (colorless) through Z (light color). All D-Z diamonds are considered white, even though they contain varying degrees of color. True fancy colored diamonds (such as yellows, pinks, and blues) are graded on a separate color scale. GIA created the first, and now globally accepted standard for describing diamonds: Color, Clarity, Cut and Carat Weight. Today, the 4Cs of Diamond Quality is the universal method for assessing the quality of any diamond, anywhere in the world. When selling your diamond to a purchaser, color is always taken into account when determining its quality and value. The rarer and brightly colored stones are worth a premium as are the colorless diamonds. White diamonds are assessed using colorless diamonds as an industry standard and categorized on the GIA diamond grading system. Gem diamonds in GIA’s D-to-Z range usually decrease in value as the color becomes more obvious. Just the opposite happens with fancy color diamonds: Their value generally increases with the strength and purity of the color. Large, vivid fancy color diamonds are extremely rare and very valuable. (The exception to this is fancy color diamonds, such as pinks and blues, which lie outside this color range.) Most diamonds found in jewelry stores run from colorless to near-colorless, with slight hints of yellow or brown. GIA’s color-grading scale for diamonds is the industry standard.
The GIA Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades. Flawless (FL) No inclusions and no blemishes visible under 10x magnification Internally Flawless (IF) No inclusions visible under 10x magnification
8 Jul 2015 The GIA scale begins with the letter D, representing colorlessness, and continues with increasing presence of color to the letter Z, representing 13 Aug 2015 Well you've come to the right place. GIA's clarity chart, better known as the Official GIA Diamond Clarity Scale, is the standard used by jewelers The GIA Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades. Flawless (FL) No inclusions and no blemishes GIA's color-grading scale for diamonds is the industry standard. The scale begins with the letter D, representing colorless, and continues with increasing The GIA grades diamonds on a scale of D (colorless) through Z (light color). All D-Z diamonds are considered white, even though they contain varying degrees of Diamond Color Scale | GIA Diamond Chart. Posted by Sharif Khan on 15th Jul 2018. Among the 4Cs for grading and evaluating diamonds is Color. In White Routine Life Measurements: Diamonds Grading (Cut, Clarity, Color & Carat) diamond clarity chart GIA Diamond Grading Scales: The Universal Measure of
In an effort to help you understand the GIA Cut Grading System more fully, and to make the best use of it in your business, we provide these informative charts and booklets that summarize the system, and discuss each aspect of it. Estimating a Cut Grade Using the GIA Diamond Cut Grading System
In this post, you can learn about and download the official GIA Color Scale, work with an interactive diamond color chart to see the relationship between grades and colors, and watch a useful GIA Diamond Color Grading video to see how GIA evaluates diamond color. Diamond 4Cs and Gemstone Information. The World’s Foremost Authority in Gemology™ Established in 1931, GIA protects the public through gemological research, education, impartial gem identification and grading services, and instrument development.
There are several diamond grading labs around the world: GIA, AGS, EGL, and IGI to name a few. These labs all have their own grading criteria and standards. We recommend that you buy diamonds certified by GIA or AGS. These two labs are the most respected worldwide and have the highest, most consistent grading standards.
DIAMOND GRADING CHART. Every diamond certified by the GIA undergoes a thorough, independent evaluation. Here you will learn how GIA diamond grades are established, and how those grades affect the diamond's price. Each of the four C's (Carat Weight, Cut, Color, Clarity) is accompanied by a diamond chart illustrating the differences between grades.
In addition to the diamond's carat weight and measurements, a certificate includes grades for the diamond's cut, color and clarity. These grades are the opinion of