
DF
Founded Year
2012Stage
Series C | AliveTotal Raised
$200MValuation
$0000Last Raised
$200M | 4 yrs agoRevenue
$0000Mosaic Score The Mosaic Score is an algorithm that measures the overall financial health and market potential of private companies.
-21 points in the past 30 days
About DF
DF serves as an operator in the semiconductor industry. The company's offering is the production of single-crystal diamond wafers, which are used as a key component in various tech industries. These wafers are primarily sold to sectors such as AI and cloud computing, power electronics, and wireless communication. DF was formerly known as Paragon Mining and Diamond Foundry. It was founded in 2012 and is based in San Francisco, California.
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Research containing DF
Get data-driven expert analysis from the CB Insights Intelligence Unit.
CB Insights Intelligence Analysts have mentioned DF in 3 CB Insights research briefs, most recently on Sep 23, 2024.

Sep 23, 2024
The semiconductor manufacturing market map
Expert Collections containing DF
Expert Collections are analyst-curated lists that highlight the companies you need to know in the most important technology spaces.
DF is included in 5 Expert Collections, including E-Commerce.
E-Commerce
11,046 items
Companies that sell goods online (B2C), or enable the selling of goods online via tech solutions (B2B).
Unicorns- Billion Dollar Startups
1,249 items
Luxury Tech
419 items
Tech-enabled companies launching new luxury brands, as well as startups providing tech solutions to the luxury industry, including e-commerce tools, marketing, and more. While these companies may not exclusively target luxury companies, they have notable luxury partners.
Semiconductors, Chips, and Advanced Electronics
7,204 items
Companies in the semiconductors & HPC space, including integrated device manufacturers (IDMs), fabless firms, semiconductor production equipment manufacturers, electronic design automation (EDA), advanced semiconductor material companies, and more
Artificial Intelligence
6,858 items
DF Patents
DF has filed 2 patents.
The 3 most popular patent topics include:
- hybrid electric buses
- hybrid electric cars
- hybrid powertrain

Application Date | Grant Date | Title | Related Topics | Status |
---|---|---|---|---|
10/18/2018 | 3/1/2022 | Thin film deposition, Semiconductor device fabrication, Coatings, Plasma physics, Chemical processes | Grant |
Application Date | 10/18/2018 |
---|---|
Grant Date | 3/1/2022 |
Title | |
Related Topics | Thin film deposition, Semiconductor device fabrication, Coatings, Plasma physics, Chemical processes |
Status | Grant |
Latest DF News
Oct 8, 2024
Nelson Mandela worried about mined diamonds, Leonardo di Caprio defended them, makers of lab-grown stones demonise them Nelson Mandela worried about mined diamonds, Leonardo di Caprio defended them, makers of lab-grown stones demonise them Blood diamonds have a dirty reputation, but the majority of natural diamonds are mined in normal mines around the world. / bne IntelliNews By bne IntelliNewsOctober 8, 2024 Nelson Mandela was sufficiently worried that the 2007 film ‘Blood Diamond’ would have a negative impact on those African economies which were reliant on diamond sales, that he reached out to Warner Brothers before its release. In his letter to director Ed Zwick, he wrote: “it would be deeply regrettable if the making of this film obscured the truth, and as a result led the world …to cease buying mined diamonds from Africa… we hope that the desire to tell a gripping and important real-life historical story will not result in the destabilisation of African diamond-producing countries and ultimately their peoples”. Warner Brothers didn’t respond, but in a subsequent interview, Ed Zwick acknowledged that diamonds were crucial to many African economies, although he didn’t believe they were receiving their fair share of the benefits. After meeting Mandela, the star of Blood Diamond, Leonardo Di Caprio, stated that “ultimately, diamonds are a source of social and economic stability in Africa, so this movie isn’t to say people shouldn’t buy diamonds”. So why do lab-grown diamond (LGD) companies continue to demonise the natural diamond industry without being challenged? Three things stand out: First, there are still a few bad players in the industry, and the issue of origin persists despite the availability of tracking technology. Secondly, the potential money to be made in LGDs convinced many in the natural diamond industry to get involved themselves. Thirdly, and most importantly, the natural diamond industry failed to learn a simple lesson; if you don’t tell your own story, then other people will tell it for you. A recent example is the fine jewellery brand ‘Kimai’, which Sidney Neuhaus and Jess Warch pitched on the BBC’s Dragon’s Den. They claimed that their LGDs, which have been worn by celebrities like Emma Watson and Meghan Markel, are “chemically and optically identical to mined ones without the negative impact… from unethical mining environment to huge negative environmental impact”. Disturbed by the negativity, I checked Kimai’s website which claims that “the [diamond mining] industry is full of unfair working conditions, environmentally disastrous consequences and blown-up prices”. No, it’s not. The website states that ”…typically, mined diamonds come from unethical supply chains in conflict regions, with poor working conditions, low wages and human rights violations”; No, they typically don’t. These opinions are not an accurate reflective of the whole industry, on which so many people in the Global South depend for their livelihoods, so why is it acceptable for them to use such misleading comments to promote their own business. Even more troubling are the claims made by LGD jeweller ‘Vrai’ (Vrai.com) which is the retail arm of US-based LGD grower Diamond Foundry, which was set up in 2013 with funding from billionaires like Mark Pincus (Zynga), Evan Williams (Twitter) and Andre McCollum (Facebook). Vrai state that their LGDs have been worn by the likes of Taylor Swift, Jennifer Lopez, Emma Stone, Emma Watson and Joe Jonas, but they also falsely claim that natural diamonds are “abundant” in the earth, and that prices are controlled by a “foreign mining cartel”, suggesting customers feel “fleeced” when buying natural diamonds. Given that newly mined natural diamond supplies are depleting, and no cartel has existed for decades, these statements are not only blatantly untrue but also hypocritical. While LGDs are cheap to produce and have little resale value, they are often sold at high retail margins, raising the obvious question of who is actually ‘fleecing’ consumers. Vrai goes on to claim that diamond mining causes irreversible environmental damage to the entire surrounding ecosystem and that wildlife is displaced both through the actual mining and the associated deforestation. They target De Beers, referencing its founder (Cecil Rhodes) as the ‘architect of apartheid’, and state that its revenues ‘support African governments and officials’, ignoring De Beers’ unique commitments to environmental conservation and community development, as well as the benefits that natural diamonds bring to so many. For every hectare of land disturbed by mining, De Beers manages six hectares for conservation. In Botswana, De Beers and the government are the largest breeders and protectors of white rhino. At De Beers’ 32,000-hectare Venetia Limpopo Game Reserve there were too many elephants so in an amazing project, they transported over 100 elephants over 1,000 miles (1,600 km) to restock the 400,000-hectare Zinave National Park in Mozambique where after decades poaching, only eight elephants remained. De Beers has partnered with ‘National Geographic’ to protect the Okavango Delta. As for deforestation, maybe I’m missing something, but I don’t know of a single tree uprooted for diamond mining in the last five years, but I do know that De Beers is working with innovative start-up ‘Kelp Blue’ to plant forests of kelp off the coast of Namibia to capture carbon dioxide in the ocean. De Beers’ own research shows that kimberlite ore naturally absorbs carbon; the more it is crushed and stockpiled above ground, the more carbon it absorbs. Nelson Mandela praised De Beers for its work in communities. “I congratulate De Beers, a world leader in diamonds, with its roots in South Africa for the way it continues to demonstrate its credentials as a good corporate citizen in so many areas of concern”. Who better defines De Beers? Nelson Mandela, or the man Vrai want you to associate them with, who died in 1902? Natural diamonds have turned Botswana from one of Africa’s poorest nations into one of its richest. In West Africa approximately 1.5mn artisanal miners (and their families) rely on natural diamonds not just for their jobs but for their very lives. Dishonestly demonising the natural diamond industry just to put money into the pockets of a few billionaire investors and the people you are really hurting are already some of the most marginalised people in the world, and why is that okay? Incidentally, De Beers’ ‘Gemfair’ project in Sierra Leone is arguably their best work, where local teams work with artisanal miners to bring them into the formal mining sector, access funding, provide training in safety, more environmentally friendly mining and provide the technology to track their diamonds and achieve real market prices. Ironically, Diamond Foundry’s most high-profile investor is the same Leonardo di Caprio who met with Mandela, except when it involved his own money, he changed his rhetoric completely to ‘I’m proud to invest in Vrai’s Diamond Foundry Inc – sustainably growing diamonds in America without the human and environmental toll of mining.” Nelson Mandela would be turning in his grave. No one mentions that LGD can be used as windows on missiles flying at high Mach numbers (to link to GPS satellites), used in high power lasers and microwave weaponry or as coatings on the nose cones of hypersonic missiles to protect them against rain and sand. Norinco is one of the larger producers of LGDs in China; it also makes tanks, artillery, ammunition, etc. Diamond Foundry itself claims to be the world’s leading producer of single-crystal LGD wafers, and recently signed a deal with major defence contractor Raytheon, looking to use LGD wafers to improve the performance of military hardware. That’s an interesting idea of sustainability. The natural diamond industry stood back and let the LGD industry own the narrative, and innuendo, misinformation and outright lies were allowed to go unchallenged, and now they are paying the price. Richard Chetwode holds several non-executive roles in the diamond and property industry. He is a part-time journalist and is currently writing a book on the diamond industry in World War II. He is non-Executive Chairman of Namibia-based Trustco Resources and has previously worked for De Beers, Harry Winston, Dominion Diamonds and Gem Diamonds. All the opinions in this article are his own but while efforts have been made to ensure the accuracy and reliability of the information provided in this article, neither can be guaranteed. Information in this article is strictly for informational purposes and should not be considered investment or financial advice. Consult your investment professional before making any investment decisions. 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DF Frequently Asked Questions (FAQ)
When was DF founded?
DF was founded in 2012.
Where is DF's headquarters?
DF's headquarters is located at 322 East Grand Avenue, South San Francisco.
What is DF's latest funding round?
DF's latest funding round is Series C.
How much did DF raise?
DF raised a total of $200M.
Who are the investors of DF?
Investors of DF include Fidelity Investments, Future Tech Lab, Andrew McCollum, Leonardo DiCaprio, Mark Goldstein and 13 more.
Who are DF's competitors?
Competitors of DF include LUSIX and 6 more.
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Compare DF to Competitors
Limelight Lab Grown Diamonds is a sustainable luxury brand specializing in lab-grown diamond jewelry. The company offers a wide array of jewelry pieces including rings, earrings, pendants, and bracelets, all studded with certified lab-grown diamonds. It caters to the luxury goods market with a focus on environmentally conscious consumers. It was founded in 2019 and is based in Mumbai, India.
IIa Technologies is a company focused on lab-grown diamond technology within the gem and jewelry industry. The company's main service involves growing diamonds above the ground for various applications, using a sustainable process based on Microwave Plasma Chemical Vapor Deposition technology. These lab-grown diamonds are primarily used in the mechanical, high technology, and gem and jewelry industries. It was founded in 2005 and is based in Singapore.
Nano Materials and Processes, Inc. is a company focused on nanotechnology, specifically in the production of highly refined detonation nanodiamond crystals. The company offers a range of applications for these nanodiamonds, including use in tribology, composite materials, electrochemical deposition, cosmetics, medicine, and naturopathy. They primarily cater to the industrial and commercial sectors, as well as individual consumers. It was founded in 2011 and is based in Milford, Michigan.
FemtoSci focuses on advanced material technologies, specifically in the domain of functionalized diamond nanoparticles, within the materials science and electronics sectors. The company's main offerings include the development of additives for enhancing the thermal and mechanical performance of liquids and solids, as well as creating sensors, detectors, and microelectronic components designed to operate in extreme environments. FemtoSci's products are primarily utilized in the enhancement of thermal conductivity for transformer oils and plastics, and in the development of robust electronics for high-stress conditions. It was founded in 2012 and is based in Nashville, Tennessee.
DiamFab specializes in the development of diamond semiconductor technology for various industries. Their products are synthetic diamonds designed for electronics and extreme conditions, suitable for applications such as quantum computing. The company primarily caters to sectors that require advanced materials with high temperature, voltage, and radiation resistance. It was founded in 2019 and is based in Grenoble, France.
NCD Technologies is a company focused on the development and optimization of diamond and diamond-like coatings, operating within the materials science and engineering industry. The company's main offerings include the creation of custom-engineered diamond and diamond-like carbon (DLC) coatings, which are designed to improve the performance of various parts, systems, and devices. These coatings are primarily used in a range of industries including aerospace, automotive, defense, electrical, medical and dental, oil and gas, optical, and research. It was founded in 2009 and is based in Madison, Wisconsin.
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