Irradiation The alteration of a gemstone's color through the use of radiation. Ceci est souvent suivi d'un processus de chauffage. The enhanced color of irradiated gemstones is permanent. New And Future Technologies Techniques for enhancing colored gemstones, soit détectable, soit autrement, sont continuellement développés. Cela peut être difficile, ou dans de rares cas, impossible to [...]
Archives par catégorie: NOUVELLES
Heat Treatment The application of heat to enhance the color and/or clarity of gemstones has been a common practice around the globe for centuries. It is part of the standard polishing and finishing process for many colored gemstones. En tant que tel, it is accepted by the jewelry industry and the American Gem Trade Association. The enhanced [...]
Blue Nile's colored Gemstone Enhancement Policy Blue Nile offers consumers only the highest quality, pierres précieuses authentiques. Nos pierres précieuses colorées sont soumises à des inspections internes rigoureuses par nos gemmologues qualifiés pour garantir qu'elles répondent à nos normes de qualité strictes.. En raison de leur rareté et de leurs propriétés visuelles uniques, presque toutes les pierres précieuses de couleur vendues chez les bijoutiers, dont le Nil Bleu, sont [...]
Different Densities The carat weight of a gemstone does not necessarily allow you to accurately envision the size of the gemstone. Different gemstones have different densities (mass per unit volume), so two gems that appear to be the same size may actually have very different weights. Par exemple, a ruby is more dense than a [...]
Gemstone Cut Look at the gemstone in the setting and ensure that all the facets are symmetrical. Une couronne asymétrique indique une pierre précieuse de mauvaise qualité. Dans tous les cas, une pierre précieuse bien taillée est symétrique et reflète la lumière uniformément sur toute la surface, et le vernis est lisse, sans entailles ni rayures. These are the characteristics that [...]
Gemstone Cut Colored gemstones are generally cut to maximize the beauty of their color. To recognize quality in the cut of a gemstone, there are several points to consider. What to Look For A good cut showcases the gemstone's color, diminishes its inclusions, and exhibits good overall symmetry and proportion. Because gemstone color can vary, [...]
Identifying Marks Because gemstones form under unique circumstances, each individual gemstone is comprised of a combination of trace minerals, which create a unique set of identifying marks or inclusions. Inclusions will not necessarily detract from the beauty or desirability of a colored gemstone. What to Look For When considering a colored gemstone's clarity, you should [...]
Tone Tone represents the depth of color, allant de l'incolore au noir. Le ton des pierres précieuses est décrit comme "lumière," "moyen-léger," "moyen," "moyen-foncé," et "sombre." Blue Nile propose des pierres précieuses avec les tons les plus recherchés qui se situent dans la gamme moyennement claire à moyennement foncée.. Pour tous nos bijoux en pierres précieuses, you'll find any tone variations are called out in [...]
Gemstone Color The beautiful color of a gemstone is its most defining characteristic, and many jewelers consider it to be the most important evaluation criterion. When deciding upon gemstone color, examine hue, tonifier, et saturation. Hue The most valuable gemstones are those that exhibit a pure color and only "léger" hues of other colors in [...]
Gemstone Education This guide defines the five essential characteristics of gemstone quality. En comprenant ces caractéristiques, you'll be able to shop with confidence. Imprimez ces informations utiles et emportez-les avec vous lors de vos achats afin de pouvoir faire le meilleur choix concernant un magnifique bijou en pierres précieuses.. Color The jewelry industry recognizes the highest quality [...]