Overview of Diamond
Diamonds eventually spread throughout the world, even though India had remained the only major source of the gemstone until diamonds were discovered in Brazil in 1725. A Chinese work from the 3rd century BC mentions: “Foreigners wear it [diamond] in the belief that it can ward off evil influences”. The Chinese, who did not find diamonds in their country, initially did not use diamond as a jewel but used it as a “jade cutting knife”. Diamonds reached ancient Rome from India. Diamonds were also discovered in 700 in Borneo, and were used by the traders of southeast Asia.
Diamond expertly translates to the stage the emotional depths of Black girlhood, the poisonous effects of racism, and the heartbreak of shame in Morrison’s work. Celebrated for a “profound and unrelenting vision,” (The New Yorker) Morrison sets The Bluest Eye in her hometown of Lorain, Ohio, and places three young Black girls—Claudia, Pecola, and Frieda—center stage as they strive to make sense of love, sisterhood, abuse, and hate.LEARN MORE
Diamonds are embedded in drill tips or saw blades, or ground into a powder for use in grinding and polishing applications. Specialized applications include use in laboratories as containment for high pressure experiments (see diamond anvil cell), high-performance bearings, and limited use in specialized windows. With the continuing advances in the production of synthetic diamonds, new applications are becoming feasible.
DIAMOND SA is a Swiss-based company with a long experience of specializing in the design, manufacturing and assembly of both standard and custom fiber optic connectors and assemblies. Our patented Active Core Alignment (ACA) process allows for unprecedented performance, including very low insertion loss. In addition, DIAMOND SA is also proud to be the inventor of the world-famous E-2000® connector.
Diamond Offshore Drilling, Inc. is a leader in offshore drilling, providing contract drilling services to the energy industry around the globe with a total fleet of 15 offshore drilling rigs, consisting of 11 semisubmersibles and four dynamically positioned drillships.
Diamonds which are not cut into a round brilliant shape are known as “fancy cuts.” Popular fancy cuts include the baguette (French, meaning rod or loaf of bread), marquise, princess cut (square outline), heart, briolette (a form of the rose cut), and pear cuts.
Diamond received the Onassis Prize in Finance in 2018, the CME Group- Mathematical Sciences Research Institute Prize in Innovative Quantitative Applications in 2016 and the Morgan Stanley-American Finance Association Award for Excellence in Finance in 2012.
Diamond V will be the world leader in delivering natural, science-based, sustainable postbiotic animal feed additives that improve animal health, protect the environment, support pre-harvest food safety, and advance public health.
Diamond Rental has 11 equipment stores conveniently located along Utah’s Wasatch Front, making it simple for Utah residents to get the equipment and tool rental services they need in a timely manner.
Diamond revenue fell 15 to 33 percent worldwide in 2020, according to the Bain report, as production fell 20 percent because of mining pauses and bricks-and-mortar store closures during the pandemic.
The modern era of diamond mining began in the 1860s in Kimberley, South Africa with the opening of the first large-scale diamond mine. The first diamond there was found in 1866 on the banks of the Orange River and became known as the Eureka Diamond.
August 28, 2019
The new Diamond version 4.6 supports disorder parts, improves mixed site representations, and exports a 3D scene into OBJ and STL format.More…
How Popular are Round Cut Diamonds?
Round Cut is by far the most popular diamond shape on Blue Nile.Over 70% of our customers choose a round cut diamond.
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Is clarity more important for emerald cut diamonds?
The emerald-cut doesn’t hide inclusions well—especially for diamonds 1.5 ct.or larger.If you are considering an emerald cut diamond we recommend that you splurge on a higher clarity grade.Learn more about diamond clarity.
Are emerald cut diamonds old fashioned?
The emerald cut has made a serious comeback thanks to a host of famous engagements.
Which ring styles work best with emerald cut diamonds?
With its Art Deco-era appeal, emerald cut diamonds look especially amazing in vintage-inspired settings.Check out our large selection of vintage engagement rings.
Did You Know?
The largest uncut diamond ever found on earth was the 3,106-carat Cullinan diamond.It was mined in South Africa in 1905 and cut to form the 530-carat “Star of Africa,” which is now part of the British Crown Jewels.But that is nothing compared with the biggest in the known universe.In 2004 American astronomers discovered a diamond 2,500 miles (4,000 km) wide, weighing 10 billion trillion trillion carats, at the heart of a white dwarf star eight light years away in the constellation Centaurus.The star is unofficially known as Lucy, after the Beatles song “Lucy in the Sky with Diamonds.
Are round cut diamonds more expensive than other shapes?
Round cut diamonds take the most raw material to create when they are cut from a rough diamond.While carat weights under .75 are only slightly more expensive than similar fancy cut diamonds, as carat weight increases (especially at the 1 ct.mark), the cost increases more significantly.Learn more in our guide to how diamond shape affects price.
Want more gemology insights?
Learn how to get started with the International Gem Society’s guide to gemstone identification.
Is GIA certification important for round cut diamonds?
Round cut diamonds are the only shape with cut standards established by the Gemological Institute of America (GIA).All Blue Nile diamonds are GIA certified.Learn more about GIA diamond grading reports.
Are emerald cut diamonds more expensive?
Emerald-cut diamonds offer extraordinary savings, sometimes as much as 40% compared to a round of similar qualities.Unlike round, you can also save by buying a shallower cut which accentuates the diamond’s carat weight.
How important is clarity in round diamonds?
Round cut hides inclusions well, so you may be able to save with a lower clarity grade.
What is a Gem?
Even the most general definition of a gem has many exceptions.
Pandora's lab-made diamonds are being made in Britain, and the UK is the first country where they will be sold.
History of Diamond
In 1722, René Antoine Ferchault de Réaumur demonstrated that iron was transformed into steel through the absorption of some substance, now known to be carbon. In 1772, Antoine Lavoisier showed that diamonds are a form of carbon; when he burned samples of charcoal and diamond and found that neither produced any water and that both released the same amount of carbon dioxide per gram.
In 1779, Carl Wilhelm Scheele showed that graphite, which had been thought of as a form of lead, was instead identical with charcoal but with a small admixture of iron, and that it gave “aerial acid” (his name for carbon dioxide) when oxidized with nitric acid. In 1786, the French scientists Claude Louis Berthollet, Gaspard Monge and C.
In 1869, an even larger 83.50-carat (16.700 g; 0.5891 oz) diamond was found on the slopes of Colesberg Kopje on the farm Vooruitzigt belonging to the De Beers brothers.
In 1888, the two companies merged to form De Beers Consolidated Mines, which proceeded to establish a monopoly over the world’s diamond market. That monopoly had ended by 2005, following an antitrust lawsuit in the US (which De Beers settled without admitting wrongdoing, upon payment of a US$295 million settlement), and a voluntary agreement between De Beers and the European Commission. The latter agreement had been overturned upon appeal by the Russian mining company Alrosa, but the European Court of Justice then upheld the decision and the European Commission subsequently concluded its investigation with no more action being taken against De Beers.
In 1989, Harry Winston began making timepieces based on the concept of mixing true authenticity and luxury into the company.
In 1990, Rock was chosen to produce Metallica’s Diamond-certified (16x Platinum) self-titled album (commonly referred to as The Black Album).
In 1999, the prestigious watchmaking label introduced this collection of ladies watches in diamond-set rose gold or stainless steel, aimed to assimilate to every aspect of a woman’s life.
In 2006, Dark Horse was the third largest comics publisher.
In 2015, a team at the North Carolina State University announced the development of another allotrope they have dubbed Q-carbon, created by a high energy low duration laser pulse on amorphous carbon dust.
In 2017, two Bitcoin miners called Team Evey and Team 007 decided to change the network’s protocol that is called Bitcoin Core.
In 2018, De Beers launched an earring and necklace line with lab-made diamonds, with prices starting at $200.
In 2020, RESOLVE and the Diamond Development Initiative (DDI) joined forces in a program merger to bolster capacity to support responsible sourcing of artisanally mined diamonds and to broaden scope to include, among others, gold, cobalt and “the three Ts” (tin, tantalum, and tungsten).
In 2020, worldwide lab-grown diamond production grew to between 6 and 7 million carats.
In 2022, Trading Beasts’ forecast puts BCD at $0.77 as the lowest possible price per token and $1.14 as its highest.
On 8 January, Bitcoin Diamond climbed above the 200-Day Moving Average and maintained support at $0.50.