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Faceting of a rough diamond to increase its brilliance
Diamond cutting is the practice of shaping a diamond from a rough stone into a faceted gem. Cutting diamonds requires specialized knowledge, tools, equipment
Diamond_cutting
Form of carbon
major industrial applications such as cutting and polishing tools. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity
Diamond
Type of cut used when shaping a diamond
of the 20th century. The earliest diamond cutting techniques were simply to polish the natural shape of rough diamonds, often octahedral crystals; it wasn't
Diamond_cut
Largest gem-quality diamond ever discovered
his diamond-cutting factory in Amsterdam. At the time, technology had not yet evolved to guarantee the quality of modern standards, and cutting the diamond
Cullinan_Diamond
Gemstone
A diamond is a gemstone formed by cutting a raw diamond. Diamonds have high monetary value as one of the best-known and most sought-after gems, and they
Diamond_(gemstone)
Largest cut natural diamond in the world
Because black diamonds lack cleavage planes and have highly irregular crystal orientations, they are resistant to conventional cutting methods. Only specialized
Black_Falcon_(diamond)
Flat surface of a gem, crystal, etc
them to reflect light. The earliest diamond cutting techniques were simply to polish the natural shape of rough diamonds, often octahedral crystals. It wasn't
Facet
Cutting tool with diamond grains
A diamond tool is a cutting tool with diamond grains fixed on the functional parts of the tool via a bonding material or another method. As diamond is
Diamond_tool
Saw that uses abrasive metal wire or cable
errors in the cut. Diamond wire cutting (DWC) is the process of using wire of various diameters and lengths, impregnated with diamond dust of various sizes
Wire_saw
Radio commentator (1928–2021)
attend college. He was sent to Brighton, England to apprentice in diamond cutting at his uncle's company, Monnickendam Ltd. Masters was said in a newspaper
Roy_Masters_(commentator)
Diamond exchange in Mumbai, India
(Charni Road). The cutting and polishing of diamonds occurs mainly in the city of Surat, which is also known as 'Diamond City'. The cutting and polishing units
Bharat_Diamond_Bourse
Saw blade enhanced with diamond grit
A diamond blade is a saw blade which has diamonds fixed on its edge for cutting hard or abrasive materials. There are many types of diamond blade, and
Diamond_blade
Shaping of gemstones for jewelry
techniques. In modern contexts, a gemcutter is a person who specializes in cutting diamonds, but in older contexts the term refers to artists who produced hardstone
Lapidary
15th-century Flemish jeweller and diamond cutter
Flemish jeweller and diamond cutter, renowned in the industry for inventing the scaif. The device revolutionized the diamond cutting industry and contributed
Lodewyk_van_Bercken
Dutch diamond-cutting company
The company is responsible for cutting some of the most famous diamonds in the world including the largest diamond ever found. Its headquarters still
Royal_Asscher_Diamond_Company
Rotating disk for polishing diamonds
polishing wheel infused with a mixture of olive oil and diamond dust used in the diamond cutting industry. It was invented in the late 15th century by Lodewyk
Scaif
Diamond exchange in Tel Aviv District, Israel
restaurants, banks, post, and package delivery services. The first diamond cutting facility was opened in 1937 (Mandatory Palestine at the time), in Petach
Israel_Diamond_Exchange
Diamond manufacturer, cutter, and/or specialist gemologist
rough or raw diamond. They are highly skilled craftsmen or artisans who are responsible for cutting, polishing and transforming a rough diamond into a finished
Diamantaire
Gemstone cut with many facets to increase the brilliance
light return through the top of the diamond. Even with modern techniques, the cutting and polishing of a diamond crystal always results in a dramatic
Brilliant_(gemstone_cut)
strain in excess of 9%. The anisotropy of diamond hardness is carefully considered during diamond cutting. Diamond has a high refractive index (2.417) and
Material properties of diamond
Material_properties_of_diamond
274-carat diamond
found. Naturally it will be called the Centenary Diamond." Cutting such an immense and valuable diamond required expertise and a considerable investment
Centenary_Diamond
Diamond cut shape
The princess cut (technical name 'square modified brilliant') is a diamond cut shape often used in engagement rings. The name dates back to the 1960s
Princess_cut
Municipality in Rhineland-Palatinate, Germany
and from the late 19th century until after the Second World War a diamond-cutting workshop, stands in the village's north in the Ohmbach valley, and
Brücken,_Kusel
Dutch diamond polishing factory
Coster Diamonds: a diamond cut with no fewer than 201 facets, more than three times the 57 facets of a classic brilliant. The refined cutting pattern
Coster_Diamonds
Buddhist sutra in Mahāyāna Buddhism
Harrison, Paul. Vajracchedika Prajñaparamita Diamond Cutting Transcendent Wisdom Watson, Burton (2010). "The Diamond Sutra". The Eastern Buddhist. 41 (1): 67–100
Diamond_Sutra
timepieces and jewellery. Founded in 1789 in Hanau, Germany, it is the oldest diamond company in the world. The company's London office was established in 1814
Backes_&_Strauss
Area within the city of Antwerp, Belgium
diamond district. In 2011, it had a turnover of $56 billion dollars. Each year, approximately 50% of the rough diamonds return to Antwerp for cutting
Antwerp_diamond_district
Belgian diamond cutter (1939–2023)
September 1939 – 28 May 2023) was a Belgian-Israeli diamond cutter, best known for cutting the Centenary Diamond. He was the great nephew of Marcel Tolkowsky
Gabi_Tolkowsky
Belgian mathematician and gemologist
American Ideal Cut, Tolkowsky cut, and Tolkowsky Brilliant), which is the diamond-cutting benchmark in North America. It was derived from mathematical calculations
Marcel_Tolkowsky
Israeli diamantaire (1924–2021)
age of 18. He was inspired by his father Max who learnt the art of diamond cutting in Belgium. In 1952, Schachter founded the company Beck and Schachter
Leo_Schachter
American singer-songwriter (born 1941)
Lifetime Tour; technical problems, including the sound cutting out, marred the concert. In August, Diamond allowed cameras to record his entire four-night run
Neil_Diamond
The Diamond Workers' Protective Union of America (DWPU) was a trade union in the United States representing workers in the diamond-cutting and polishing
Diamond Workers' Protective Union of America
Diamond_Workers'_Protective_Union_of_America
Tendency of crystalline materials to split along favored planes
electronics industry and in the cutting of gemstones. Precious stones are generally cleaved by impact, as in diamond cutting. Synthetic single crystals of
Cleavage_(crystal)
not mention the details of diamond cutting. Diamonds were reported from numerous places across India, but most of the diamond mining took place by placer
Diamond_mining_in_India
diamonds, jewelry, solid silverware, cutlery, clocks, and opera glasses, and manufactured fine jewelry. Major lapidary work such as diamond cutting was
Levison Brothers / California Jewelry Co. San Francisco
Levison_Brothers_/_California_Jewelry_Co._San_Francisco
Topics referred to by the same term
Asscher may refer to: Royal Asscher Diamond Company, a Dutch diamond-cutting company and inventor of the Asscher cut Abraham Asscher (1880–1950), Dutch
Asscher
Village in Kerala, India
PAR travels, Vijay transport diamond cutting and polishing workers, farmers. The village was a hub of diamond cutting and polishing small scale industry
Kaiparamba
Historic 45.52-carat diamond of deep-blue color
The Hope Diamond is a 45.52-carat (9.104 g; 0.3211 oz) blue diamond that has been famed for its great size and blue-violet color since the 17th century
Hope_Diamond
Israeli company in the diamond industry
seconds. This transformed the way the industry approached the process of diamond cutting and fueled consumer demand for a wider range of cuts. In the mid-1990s
Sarine_(company)
Gemological laboratory and college
started a partnership with the Israel Diamond Exchange to boost diamond sales on eBay. GCI launched an eBay-diamond exchange course to bring educational
GCI Gemological Laboratories & College
GCI_Gemological_Laboratories_&_College
for cutting large diamonds, including a significant number of stones weighing more than 100 carats (20 g) when cut, including the "Dream Diamond", a 100-carat
Antonio_Bianco
South African jeweler
South Africa, specializing in diamonds. He owns several retail stores in South Africa, and operates a diamond cutting and polishing business in Johannesburg
Yair_Shimansky
Diamond company
HB Antwerp is a diamond cutting and technology company based in Antwerp, Belgium. It was founded in 2020 by Shai de Toledo, Rafael Papismedov, Oded Mansori
HB_Antwerp
Notable individual diamonds
Diamonds occur naturally and vary in size, color, and quality, so the largest of a particular color may not be large in absolute terms, but may still be
List_of_diamonds
was purchased by Mouw Diamond Cutting in Johannesburg through a partnership with William Goldberg of New York City. The diamond was marked for bisection
Premier_Rose_Diamond
American diamond company
is cutting and polishing "ideal-cut" and "fine make" diamonds, which it sells to upscale retail jewelers throughout the world. Some of these diamonds are
Lazare_Kaplan_International
South African businessman (1866–1921)
training disabled soldiers in diamond cutting at Brighton, England. The Bernard Oppenheimer Diamond Works (National Diamond Factories Ltd) opened on the
Bernard_Oppenheimer
South African diamond cutter
Embee Diamond Technologies 1998, a diamond design, polishing and finishing source in Canada. Embee Diamond Technologies operates a diamond cutting and polishing
Mike_Botha
Color due to impurities or crystal lattice defects in diamond
intense pink diamonds or blue diamonds (such as the Hope Diamond) can be dramatically more valuable. Of all colored diamonds, red diamonds are the rarest
Diamond_color
At one time the largest cut diamond in the world
meant that cutting and polishing the large diamond presented challenges. De Beers considered this as an opportunity to test new cutting technologies
Golden_Jubilee_Diamond
American businessman (1929–2025)
Retrieved November 16, 2009. "OPIC Board Approves $250 Million to Develop Diamond Cutting and Polishing in Botswana" (Press release). Overseas Private Investment
Maurice_Tempelsman
Diamond created by controlled processes
superior to those of most naturally formed diamonds. Synthetic diamond is widely used in abrasives, in cutting and polishing tools and in heat sinks. Electronic
Synthetic_diamond
Indian public sector bank
from Mumbai (Bombay) engaged in diamond cutting and jewellery having business in Antwerp, a major centre for diamond cutting. Two years later, BoB opened
Bank_of_Baroda
cutting tools, thermal conductors and consumer diamond gemstones. Apollo Diamond (defunct, assets sold in 2011 to Scio Diamond) ALTR Created Diamonds
List of synthetic diamond manufacturers
List_of_synthetic_diamond_manufacturers
Quartz crystals found in the Herkimer county of New York
Middleville diamond or a Little Falls diamond. Herkimer diamonds became widely recognized after workmen discovered them in large quantities while cutting into
Herkimer_diamond
Town in Gujarat, India
1990s, diamond cutting arose as an industry in the absence of the textile mills. At present, Bapunagar ranks second in India as a diamond cutting centre
Bapunagar
Unit of mass
Jewellers, etc., in Paris, and accepted in 1877 by the Syndical Chamber of Diamond Merchants in Paris. A metric carat of 200 milligrams is exactly one-fifth
Carat_(mass)
American mineralogist (1856–1932)
kunzite in his honor. He also supervised the cutting of the very large stone that became the Tiffany Yellow Diamond. He headed up the US mining and mineralogical
George_Frederick_Kunz
Henry Grossbard was the inventor of the Radiant Cut, a diamond cut similar to the Barrion but with different faceting; he was also the founder of RCDC
Henry_Grossbard
Diamond-cutting and trading in Israel
diamond-cutting plants walked out as a result of ‘hold-ups by dissident underground organisations.’ Secondly, Mr O. Ben-Ami, president of the Diamond
Diamond_industry_in_Israel
City in Gujarat, India
think tank on urban affairs. Surat is a major hub of diamond cutting and polishing. The first diamond workshops in Gujarat appeared in Surat and Navasari
Surat
Technique for correcting surface defects
needed] Diamond grinding – Technique of grinding Diamond blade – Saw blade enhanced with diamond grit Diamond segment Diamond tool – Cutting tool with
Diamond_grinding_of_pavement
Israeli straight-edge diamond manufacturer
Lili Diamonds is an Israeli manufacturer of straight-edged diamonds based in Tel Aviv, Israel. Lili Diamonds was established by Siman-Tov brothers (Jacob
Lili_Diamonds
Impure form of polycrystalline diamond
orientations of the diamond crystal at the cutting surface and the hardest orientation does the most aggressive cutting. Cutting tools made with carbonado
Carbonado
Surties in Surat, Gujarat, India
particularly in the area of Varachha. Varachha area is a major hub of diamond cutting and polishing. The primary workforce in this industry comprises individuals
Varachha
Technology that uses a laser to cut materials
ISO 9013, etc. In 1965, the first production laser cutting machine was used to drill holes in diamond dies. This machine was made by the Western Electric
Laser_cutting
tool's diamond segments to play their role of cutting or grinding. Diamond segments consist of small-size diamonds and metal bond materials. The metal bond
Diamond_segment
(Charni Road). The cutting and polishing of diamonds occurs mainly in the city of Surat, which is also known as 'Diamond City'. The cutting and polishing units
Foreign_trade_of_India
Relating to the appearance of internal and surface defects in diamond
that many diamonds were being aggressively cut to remove any surface blemishes, and thereby reducing the cutting quality ("make") of the diamonds. The Internally
Diamond_clarity
instruments and increase of the markets in China and India. Today, over 50 diamond-cutting companies operate in Armenia. The estimated number of people involved
Diamond_industry_in_Armenia
A diamond district is an area where the cutting, polishing, and trade of diamonds and other gems takes place. There are a number of these districts around
Diamond_district
Handheld power tool for cutting or polishing
103 dBA. Cut-off wheel Grinding wheel for grinding Diamond disc or diamond cutting wheel, for cutting stones like granite Concrete grinding wheel, to remove
Angle_grinder
Diamond with prior use
A recycled diamond is a diamond which had a prior use and has re-entered the diamond supply chain. Diamonds in recent times have become good candidates
Recycled_diamond
Gemstone that has been shaped and polished
was the default method of preparing gemstones before gemstone cutting developed. Cutting en cabochon (French: "in the manner of a cabochon") is usually
Cabochon
the cutting, the sales value of the stones reached $2 million. The stone was cut by Adrian Grasselly. List of largest rough diamonds List of diamonds Cullinan
Vargas_Diamond
Manufacturer
as De Beers Industrial Diamonds. Element Six advanced engineering materials are used in abrasive applications such as cutting, grinding, drilling, shearing
Element_Six
Diamond-like object which is not a diamond
A diamond simulant, diamond imitation or imitation diamond is an object or material with gemological characteristics similar to those of a diamond. Simulants
Diamond_simulant
One of the largest yellow diamonds ever discovered
firm. Kunz and his team studied the stone for a year before cutting began. The cut diamond was little publicized upon its arrival in New York in 1880,
Tiffany_Yellow_Diamond
Street in Amsterdam
confusion with the already existing Verversstraat in Amsterdam. The diamond cutting factory Asscher is located on Tolstraat. The factory building, dating
Tolstraat
Gem cut
brilliant cut diamond", which he called the trillion cut. Finker had a large diamond cutting factory in New York, and Henry Meyer Diamond Company, who
Trilliant_cut
Large cut diamond
Queen's mineralogist, James Tennant, the cutting took 38 days, cost Albert £8,000, and reduced the diamond from 186 old carats (191 modern carats or
Koh-i-Noor
Device for analogue recording of sound
A keel-shaped diamond stylus appeared as a byproduct of the invention of the CED Videodisc. This, together with laser-diamond-cutting technologies, made
Phonograph
Palestinian semolina fenugreek dessert
with sesame or nigella seeds. The cake is cut into diamond or rhombus shaped pieces by first cutting in straight horizontal lines then diagonal lines,
Hilbeh_(dessert)
Gemological organization and certification company
the world's major centres for diamond cutting and polishing."IGI Launches in the Heart of the Diamond Industry". Diamond World. 15 April 2010. Retrieved
International Gemological Institute
International_Gemological_Institute
Collective settlement in Israel
agriculture into manufacturing. Kibbutz Degania Alef opened a factory for diamond cutting tools that came to have a gross turnover of several US million dollars
Kibbutz
Municipality in Rhineland-Palatinate, Germany
opened a diamond-cutting shop at the Neumühle (“New Mill”) near Brücken in 1888, thus founding the West Palatine tradition of diamond cutting. "Alle politisch
Steinbach_am_Glan
Method for making advanced optical elements
Diamond turning is turning using a cutting tool with a diamond tip. It is a process of mechanical machining of precision elements using lathes or derivative
Diamond_turning
Taxonomy of human knowledge
Mounter（METTEUR EN ŒUVRE）,etc. Work and Uses of Precious Stones. Lapidary. Diamond cutting. Jeweler, etc. Work and Uses of Iron. Large Forges. Locksmith. Tool
Figurative system of human knowledge
Figurative_system_of_human_knowledge
Skyscraper in Dubai, United Arab Emirates
Brinks and Transguard, in addition to networking and meeting rooms. Diamond cutting and exchange take place at the tower. Due to the type of transactions
Almas_Tower
140.64-carat (28.128 g) diamond owned by the French state
9 October 1702. It was later cut in London by the diamond cutter Harris, between 1704 and 1706. The cutting took two years and cost about £5,000 Rumours circulated
Regent_Diamond
Indian inventions
talks about diamond cutting and Al-Beruni speaks about the method of using lead plate for diamond polishing in the 11th century CE. Diamond drills – in
List of Indian inventions and discoveries
List_of_Indian_inventions_and_discoveries
diamond dealer and the founder of the William Goldberg Diamond Corporation. Goldberg was born in Brooklyn, New York City. He started cutting diamonds
William Goldberg (diamond dealer)
William_Goldberg_(diamond_dealer)
Capital and largest city of Sierra Leone
beverage processing, fish packing, rice milling, petroleum refining, diamond cutting, and the manufacture of cigarettes, paint, textile, and beer. The city
Freetown
Trade union in Belgium
expanded into unionising diamond workers in the countryside, and in 1929 it set up De Daad, the most modern diamond cutting factory in Belgium at the
General Diamond Workers' Association of Belgium
General_Diamond_Workers'_Association_of_Belgium
Jewellery made links of, or imitating, precious metal and worn as an ornament
chain more sparkle through these facets. (pictured) This is called "Diamond cutting" of the chain. Anchor chains with very long and open links are often
Jewellery_chain
Principle in Buddhism and the texts associated with it
Orsborn 2012, p. 141. Harrison, Paul. Vajracchedika Prajñaparamita Diamond Cutting Transcendent Wisdom Orsborn 2012, p. 271. Orsborn 2012, p. 233. Orsborn
Prajnaparamita
Former First lady of Zimbabwe; wife of Robert Mugabe
assassination. She also acquired property holdings in Hong Kong, including a diamond cutting business and a property at Tai Po, New Territories. IOL news speculated
Grace_Mugabe
Abrasive slab used to sharpen tools
the field", are called pocket stones. Often whetstones are used with a cutting fluid to enhance sharpening and carry away swarf. Those used with water
Sharpening_stone
people. Most of the villagers are farmers, though many work in the diamond cutting and polishing business in the nearby Surat and Ahmedabad. "Umrala,
Ingorala
Province in South Africa
German manufacturing giant Bayer. Other large operations include a diamond-cutting works, various heavy engineering concerns, the Natal Portland Cement
KwaZulu-Natal
travel, tourism, insurance
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