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This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus.

	Diamond is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Misplaced Pages community. Even so, if you can update or improve it, please do so.
	This article appeared on Misplaced Pages's Main Page as Today's featured article on May 11, 2005.
Article milestones Date Process Result March 10, 2005 Featured article candidate Not promoted April 16, 2005 Featured article candidate Promoted January 23, 2007 Featured topic candidate Not promoted August 25, 2009 Featured article review Kept A news item involving this article was featured on Misplaced Pages's Main Page in the "In the news" column on January 17, 2010. Current status: Featured article

This  level-4 vital article is rated FA-class on Misplaced Pages's content assessment scale. It is of interest to multiple WikiProjects.

Gemology and Jewelry: Gemstones Top‑importance This article is within the scope of WikiProject Gemology and Jewelry, a collaborative effort to improve the coverage of Gemology and Jewelry on Misplaced Pages. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Gemology and JewelryWikipedia:WikiProject Gemology and JewelryTemplate:WikiProject Gemology and JewelryGemology and Jewelry Top This article has been rated as Top-importance on the project's importance scale. This article is supported by the Gemstones subpage. Africa: Angola / Botswana / Sierra Leone / South Africa Mid‑importance This article is within the scope of WikiProject Africa, a collaborative effort to improve the coverage of Africa on Misplaced Pages. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.AfricaWikipedia:WikiProject AfricaTemplate:WikiProject AfricaAfrica Mid This article has been rated as Mid-importance on the project's importance scale. This article is supported by WikiProject Angola. This article is supported by WikiProject Botswana (assessed as High-importance). This article is supported by WikiProject Sierra Leone (assessed as High-importance). This article is supported by WikiProject South Africa. Russia Low‑importance This article is within the scope of WikiProject Russia, a WikiProject dedicated to coverage of Russia on Misplaced Pages. To participate: Feel free to edit the article attached to this page, join up at the project page, or contribute to the project discussion.RussiaWikipedia:WikiProject RussiaTemplate:WikiProject RussiaRussia Low This article has been rated as Low-importance on the project's importance scale. Canada Low‑importance This article is within the scope of WikiProject Canada, a collaborative effort to improve the coverage of Canada on Misplaced Pages. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CanadaWikipedia:WikiProject CanadaTemplate:WikiProject CanadaCanada-related Low This article has been rated as Low-importance on the project's importance scale. Metalworking Low‑importance This article is within the scope of WikiProject Metalworking, a collaborative effort to improve the coverage of Metalworking on Misplaced Pages. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MetalworkingWikipedia:WikiProject MetalworkingTemplate:WikiProject MetalworkingMetalworking Low This article has been rated as Low-importance on the project's importance scale. Rocks and minerals Mid‑importance Diamond is part of WikiProject Rocks and minerals, an attempt at creating a standardized, informative, comprehensive and easy-to-use rocks and minerals resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.Rocks and mineralsWikipedia:WikiProject Rocks and mineralsTemplate:WikiProject Rocks and mineralsRocks and minerals Mid This article has been rated as Mid-importance on the project's importance scale. Spoken Misplaced Pages This article is within the scope of WikiProject Spoken Misplaced Pages, a collaborative effort to improve the coverage of articles that are spoken on Misplaced Pages. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Spoken WikipediaWikipedia:WikiProject Spoken WikipediaTemplate:WikiProject Spoken WikipediaSpoken Misplaced Pages Geology Mid‑importance This article is within the scope of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.GeologyWikipedia:WikiProject GeologyTemplate:WikiProject GeologyGeology Mid This article has been rated as Mid-importance on the project's importance scale.

This article has been June 2004: "Untitled David Williamson column". The Western Mail. June 1, 2004.

The Wikimedia Foundation's Terms of Use require that editors disclose their "employer, client, and affiliation" with respect to any paid contribution; see WP:PAID. For advice about reviewing paid contributions, see WP:COIRESPONSE. RockMagnetist (DCO visiting scholar) (talk · contribs) has been paid by Deep Carbon Observatory on their behalf.

Section sizes Section size for Diamond (45 sections) Section name Byte count Section total (Top) 4,640 4,640 Properties 3,758 43,819 Thermodynamics 4,505 4,505 Crystal structure 2,182 2,182 Crystal habit 3,850 3,850 Mechanical 19 11,457 Hardness 6,185 6,185 Toughness 1,792 1,792 Yield strength 1,742 1,742 Elasticity and tensile strength 1,719 1,719 Electrical conductivity 2,911 2,911 Surface property 1,989 1,989 Chemical stability 2,873 2,873 Color 6,671 6,671 Clarity 1,806 1,806 Fluorescence 1,209 1,209 Thermal conductivity 608 608 Geology 4,159 24,026 Surface distribution 3,883 3,883 Exploration 1,570 1,570 Ages 1,237 1,237 Origin in mantle 3,889 3,889 Carbon sources 2,035 2,035 Formation and growth 1,179 1,179 Transport to the surface 762 762 Double diamonds 1,401 1,401 In space 3,911 3,911 Industry 518 45,627 Gem-grade diamonds 16,106 26,676 Cutting 6,022 6,022 Marketing 4,548 4,548 Industrial-grade diamonds 4,998 4,998 Mining 8,464 13,435 Political issues 4,971 4,971 Synthetics, simulants, and enhancements 46 12,370 Synthetics 5,022 5,022 Simulants 723 723 Enhancements 1,613 1,613 Identification 4,966 4,966 Etymology, earliest use and composition discovery 5,639 5,639 See also 186 186 Citations 34 34 General and cited references 4,001 4,001 Further reading 664 664 External links 1,215 1,215 Total 142,221 142,221

There is a request, submitted by Catfurball, for an audio version of this article to be created. For further information, see WikiProject Spoken Misplaced Pages. The rationale behind the request is: "Important".

Move discussion in progress

There is a move discussion in progress on Talk:Diamond the Body which affects this page. Please participate on that page and not in this talk page section. Thank you. —RMCD bot 10:17, 29 July 2023 (UTC)

Chemistry

Wow, is this a bad article. The lead states:"Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen)." This is absolute rubbish. It isn't its "rigidity" that gives bulk diamond its impermeability (if that's what is meant by contamination). It is easy to "contaminate" a diamond CVD film with you name it. How big is the difference between contaminating a 1 inch cube (say) of pure iron vs. pure diamond? Not much. Ion implantation into (the near surface of) a diamond is also trivial. If the editors meant that NATURAL diamonds (on Earth) are typically quite pure, then SAY THAT! I suspect, but just an ignorant suspicion, that diamond must transition between impure high-carbon 'stuff' to the pure allotrope. I expect that at some point there's LOTS of contaminants in the nascent diamond. Aren't most natural diamonds black? What's that?? (the preceding is a digression, I'm ignorant on their natural occurrence.) There are so many FALSE statements in this article that it needs a total rewrite. There are many other bloopers but I don't have the patience to list them all. (For instance, did you know that hydrogen will leave an ash when burnt? No? Well, just read this article. When a diamond burns (in O2), any contaminants are left as ash. Ridiculous. (as is the assumption of complete combustion of the carbon) Another false claim is that diamond contains the most atoms per unit volume. (aside: at first, I thought the editor meant per unit cell volume!, not sure why s/he used the word "unit" since it doesn't add clarity (but it is not wrong)). Estimates of hydrogen density in the sun's core is ~10,000 kg/m^3, and without qualifying pressure and temperature the claim is likely false. I could go on...)40.142.183.146 (talk) 20:59, 20 August 2023 (UTC)

Don't forget that vinyl will wear down a diamond!! 203.221.187.176 (talk) — Preceding undated comment added 21:17, 13 September 2023 (UTC)

Featured picture scheduled for POTD

Hello! This is to let editors know that File:Diamond (side view).png, a featured picture used in this article, has been selected as the English Misplaced Pages's picture of the day (POTD) for December 30, 2023. A preview of the POTD is displayed below and can be edited at Template:POTD/2023-12-30. For the greater benefit of readers, any potential improvements or maintenance that could benefit the quality of this article should be done before its scheduled appearance on the Main Page. If you have any concerns, please place a message at Misplaced Pages talk:Picture of the day. Thank you!  — Amakuru (talk) 13:32, 20 December 2023 (UTC)

Diamond is a solid form of carbon with its atoms arranged in a crystal structure known as diamond cubic. It is metastable at standard temperature and pressure, converting to the chemically stable form graphite under those conditions but at a negligible rate. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are useful in major industrial applications such as cutting and polishing tools. In addition to its industrial uses, diamond is much sought-after as a gemstone for use in jewelry. Most natural diamonds were formed between 1 billion and 3.5 billion years ago, at depths between 150 to 250 kilometres (93 to 155 mi) in the Earth's mantle. They were then carried to the surface more recently in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites. This photograph shows the cathodoluminescence of a round-cut diamond, taken with the use of a scanning electron microscope. The image has a field of view of 3.45 millimetres (0.136 in). Photograph credit: Pavel Somov Recently featured: Northern flicker Bell Island The Dover Boys at Pimento University Archive More featured pictures

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Diamonds landscaping

Please advise employees to confirm w office before removing landscaping. Thx 74.134.14.7 (talk) 18:36, 10 May 2024 (UTC)

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