Diamond (gemstone) - Wikipedia
网页The most familiar usage of diamonds today is as gemstones used for adornment—a usage which dates back into antiquity. The dispersion of white light into spectral colors is the primary gemological characteristic of gem diamonds.
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.
Diamond | Definition, Properties, Color, Applications, & Facts
网页2024年8月22日 · A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications.
Diamond Gemstones: History, Meaning, Value & More - Gem …
网页2020年3月19日 · Diamonds are brilliant, illustrious carbon minerals known as the king of gemstones. As one of the hardest minerals on earth, diamonds’ structure and global prestige are virtually unbreakable. While roughly 98% of all gems are considered semi-precious, diamond is one of four gems on the list of …
Diamond - Wikipedia
网页Appearance. This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, see Diamond (disambiguation). Main diamond producing countries. Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic.
GIA Gem Encyclopedia | Complete List Of Gemstones
网页Fine color diamonds are the most rare and costly of all gemstones. Their ranks include the world’s most famous jewel—the Hope—and the most expensive gem ever auctioned—The Graff Pink. More About this Gem Buyer's Guide
Diamond Description
网页On almost all modern birthstone lists, diamond is recognized today as the birthstone for April. Diamond is also the gem that marks the 60 th and 75 th wedding anniversaries. Diamond’s unique optical and physical properties give it the highest possible luster of any transparent gemstone.
Diamond Gem Guide and Properties Chart - Gemstones.com
网页Gemopedia. Diamond. By Tim Matthews, JD, FGA, GG, DGA, CEO and President of JTV (retired) Published: June 2014. Modified: September 2023. Polished. Rough. Jewelry. Table of Contents. Diamonds hold a special place in the gemstone worlds heart. Walk into any jewelry store and you will see display cases filled with diamond jewelry.
Diamond: The gemstone, the mineral, the super material. - Geology.com
网页What is Diamond? -- A mineral composed of crystalline carbon. -- Lab-grown varieties are made by people. -- The world's most popular gemstone. -- A "super material" with many uses. -- Superior refractive index, dispersion, luster. -- …
The Precious Gemstone Diamond - The Mineral and Gemstone …
网页Diamond, the most famed and fabled of all gemstones, is very unique in many ways. Renowned for being the hardest substance on earth, its sparkling fire, durability, and rarity make Diamond the most prized of all gems. No gemstone contains as much allure and interest as does Diamond.