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Diamond

All articles tagged with #diamond

How a Late-Night Tagline Turned Diamonds Into Forever
business20 days ago

How a Late-Night Tagline Turned Diamonds Into Forever

Frances Gerety, a 31-year-old copywriter at N.W. Ayer, reportedly penned De Beers’ tagline 'A Diamond Is Forever' in 1947, a four-word line that helped normalize diamonds as the symbol of eternal love and reshaped engagement norms across roughly 40 countries. The slogan ran from 1948 onward, reinforcing a marketing-driven idea of value (including the famous two-month-salary rule) and turning the diamond market into a multibillion-dollar industry, even as Gerety herself never married. The piece explores cognitive dissonance between the private life of a creator and the public impact of her work, and notes the line’s enduring presence in De Beers campaigns today.

via Silicon Canals|
#advertising#business#de-beers
Andy Garcia’s Diamond Shines at Cannes With 7-Minute Ovation
entertainment1 month ago

Andy Garcia’s Diamond Shines at Cannes With 7-Minute Ovation

Andy Garcia’s neo-noir Diamond premiered out of competition at Cannes to a seven-minute standing ovation. Garcia directed, co-scored, and assembled a starry LA-set noir led by Vicky Krieps and Rosemarie DeWitt, with familiar names like Bill Murray, Dustin Hoffman, Brendan Fraser and Demián Bichir among the cast. Described as a love letter to Los Angeles and classic noir, the nearly 15-year-in-the-making project marks Garcia’s return behind the camera and a personal, emotional journey he shared on stage.

via Variety|
#andy-garcia#cannes-film-festival#diamond
Acoustic Purcell boost pairs a diamond color center with a nanomechanical cavity
science2 months ago

Acoustic Purcell boost pairs a diamond color center with a nanomechanical cavity

Researchers build a microwave‑frequency nanomechanical resonator around a single silicon‑vacancy center in diamond and use a co‑localized optical mode to access the excited state, observing an acoustic Purcell effect that speeds spin relaxation by ~10× when the qubit is in resonance with a 12 GHz mode, while also using the color center as a probe to map the device’s phonon spectrum up to 28 GHz, establishing a new control regime for quantum defects and paving the way for phonon‑based interconnects between memories and qubits.

via Nature|
#acoustic-purcell#diamond#nanomechanical-resonator
Lab-made hexagonal diamond edges past regular diamond in hardness
science3 months ago

Lab-made hexagonal diamond edges past regular diamond in hardness

Chinese researchers report synthesizing millimetre-sized bulk hexagonal diamond from oriented graphite under about 20 GPa and 1,300–1,900°C, with diffraction confirming a pure hexagonal carbon phase. They measured a hardness around 114 GPa, slightly higher than typical natural cubic diamond (~110 GPa), and highlight high thermal stability, addressing long-standing debate over hexagonal diamond and suggesting potential for advanced technological uses.

via Yahoo News Canada|
#carbon#diamond#hexagonal-diamond
Lab-forged hexagonal diamond edges out natural diamond in hardness
science3 months ago

Lab-forged hexagonal diamond edges out natural diamond in hardness

Chinese researchers synthesized millimetre-sized, phase-pure hexagonal diamond in the lab by compressing highly ordered graphite between tungsten-carbide anvils at 20 gigapascals and heating to 1,300–1,900°C, yielding a material with about 114 gigapascals hardness—slightly tougher than natural cubic diamond—which could enable new technologies and settles long‑standing debates about the phase’s existence.

via Yahoo|
#carbon#diamond#hardness
China produces pure hexagonal diamond and claims superior hardness over regular diamond
physics-and-mathematics3 months ago

China produces pure hexagonal diamond and claims superior hardness over regular diamond

Chinese researchers created small, pure hexagonal diamond (lonsdaleite) samples and demonstrated that it is stiffer and harder than cubic diamond and more oxidation-resistant; the 1.5 mm samples were formed by compressing organized graphite at about 20 GPa for 10 hours and heating to roughly 1,300–1,900°C, with the work published in Nature, indicating a feasible bulk production method and potential industrial applications in drilling, cutting, and thermal management.

via Live Science|
#diamond#hardness#hexagonal-diamond
Miners Uncover 37.4 Carat Pink-Colorless Diamond
science7 months ago

Miners Uncover 37.4 Carat Pink-Colorless Diamond

A rare 37.4-carat rough diamond split evenly between pink and colorless was discovered in Botswana's Karowe mine, providing valuable insights into diamond formation and the geological processes that create unique colors, especially pink, due to structural deformation. The find offers a natural record of Earth's ancient crustal movements and deformation history, aiding scientific understanding of diamond color origins and geological history.

via Earth.com|
#botswana#diamond#geology
Family Discovers 2.79-Carat Diamond with Dollar Store Tools
science8 months ago

Family Discovers 2.79-Carat Diamond with Dollar Store Tools

A family in Arkansas found a 2.79-carat brown diamond at Crater of Diamonds State Park using simple tools, highlighting the park's unique geology and the natural history of diamonds formed deep within the Earth. The discovery underscores the park's status as a rare public source of diamonds and the importance of patience and technique in gemstone hunting.

via Earth.com|
#arkansas#brown-diamond#crater-of-diamonds
Florentine Diamond, Lost for a Century, Discovered in Canadian Vault
world8 months ago

Florentine Diamond, Lost for a Century, Discovered in Canadian Vault

A 137-carat Florentine Diamond, once owned by European royal families and thought to have vanished, was discovered in a Canadian bank vault after being kept secret for nearly a century due to family vows. The Habsburg descendants revealed the diamond's location and expressed interest in exhibiting it publicly in Canada, emphasizing its historical significance.

via ARTnews.com|
#canada#diamond#habsburg