Most diamonds found in jewellery stores run from colourless to near-colourless, with slight hints of yellow or brown. GIA Diamond colour scale GIA's color-grading Diamond Education. How to Buy a Diamond · Diamond Symmetry · Diamond Carat · Diamond Clarity · Diamond Fluorescence · Diamond Size Chart. GIA's color-grading scale for diamonds is the industry standard. The scale begins with the letter D, representing colorless, and continues with increasing Guide to the Diamond 40s. JEWELERS OF AMERICA CLARITY GIA SCALE. GIA SCALE. FL. FLAWLESSL SLIGHTLY INCLUDED. COLOR GIA SCALE.
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. GIA created the 4Cs (Color, Clarity, Cut and Carat Weight) as a universal method for establishing the quality of any diamond, anywhere in the world. The 4Cs means two very important things: diamond quality can be communicated in a universal language, and diamond-buying consumers can know exactly what they are about to purchase.
Diamond Color and Value Chart. In the normal color range, the closer a diamond gets to colorless, the higher its per-carat price. There's an especially large leap GIA's color-grading scale for diamonds is the industry standard. The scale begins with the letter D, representing colorless, and continues with increasing Evaluating diamond clarity involves determining the number, size, relief, nature, and position of a diamond's inclusions and blemishes. GIA Colored Diamond Color Reference Charts. For colored diamonds, the aspect of color far outweighs the other “C's” (clarity, cut, and carat weight). 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
The GIA laboratory issues the Diamond Dossier for loose, natural diamonds between 0.15 and 1.99 carats, in the D-to-Z color range. The Diamond Dossier is not issued for laboratory-grown diamonds, simulants, mounted diamonds, diamonds that have undergone unstable treatments such as fracture filling or coating, Until the middle of the twentieth century, there was no agreed-upon standard by which diamonds could be judged. 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.
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. 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. 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.