Diamond - Wikipedia
网页Diamond is a solid form of pure carbon with its atoms arranged in a crystal. Solid carbon comes in different forms known as allotropes depending on the type of chemical bond. The two most common allotropes of pure carbon are diamond and graphite.
Diamond (gemstone) - Wikipedia
网页Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and desirable as jewelry.
Natural Diamonds | Diamond Stone – GIA C
网页Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA.
Diamant – Wikipedia
网页Diamant ist die kubische Modifikation des Kohlenstoffs und als natürlich vorkommender Feststoff ein Mineral aus der Mineralklasse der Elemente. Diamant bildet meist oktaederförmige Kristalle, oft mit gebogenen und streifigen Flächen. Weitere beobachtete Formen sind das Tetraeder, Dodekaeder und der Würfel.
Diamant — Wikipédia
网页Le diamant (/ dja.mɑ̃ /) est l'allotrope de haute pression du carbone, métastable à basses température et pression.
Diamant - Wikipedia
网页Diamantul este un mineral nativ și în același timp o piatră prețioasă. Din punct de vedere chimic este una din formele de existență ale carbonului pur, celelalte fiind carbonul amorf (grafitul) și fulerenele.
DIAMOND中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页a transparent, extremely hard precious stone that is used in jewellery, and in industry for cutting hard things. 钻石，金刚石. The tiara was set with diamonds and rubies. 头饰上镶 …
Diamant - Wikipedia
网页The Diamant rocket (French for "diamond") was the first exclusively French expendable launch system and at the same time the first satellite launcher not built by either the United States or USSR. As such, it has been referred to as being a key predecessor for all subsequent European launcher projects.
Diamond Color - GIA 4Cs
网页Diamond Color. When most people imagine a diamond, they picture one with little to no hue. Often when we talk about diamond color, we are actually talking about the absence of color. As subtle as color distinction may be, color variations from the most obvious to subdued can drastically alter diamond quality and price.
Diamond Cut - GIA 4Cs
网页A diamond’s cut refers to how it interacts with light. While a term like oval would refer to the shape, or outline of a diamond, cut also describes the overall design of a diamond, including the arrangement and proportions of the diamond’s facets.
跳至内容