Hello and welcome back to Startups Weekly, a weekend newsletter that dives into the week’s noteworthy startups and venture capital news. Before I jump into today’s topic, let’s catch up a bit. Last week, I wrote about the flurry of IPO filings. Before that, I noted the differences between raising cash from angels vs. traditional venture capitalists.

Remember, you can send me tips, suggestions and feedback to kate.clark@techcrunch.com or on Twitter @KateClarkTweets. If you don’t subscribe to Startups Weekly yet, you can do that here.

What’s new

Venture capitalists look for companies poised to disrupt markets untouched by innovative technology. Believe it or not, a very small percentage of jewelry shopping is done online, which means there’s a big opportunity — for the right team — to bring jewelry buyers and sellers to the 21st century.

Enter Pietra, a new startup that’s just raised $4 million in a round led by Andreessen Horowitz’s Andrew Chen (Substack & Hipcamp investor). Robert Downey Jr.’s VC fund Downey Ventures and Will Smith’s fund Dreamers Fund also participated, as did Hollywood manager Scooter Braun, Michael Ovitz and supermodel Joan Smalls.

I spoke to the founding team, which includes Uber alum Ronak Trivedi and Ashley Bryan, who hails from fashion e-commerce site Moda Operandi. The pair bring a healthy mix of technology and fashion expertise to the mix. Trivedi tells TechCrunch he’s drawn on his Uber experience to recruit engineers from top tech companies and to advocate for fast growth. Meanwhile, Bryan has leveraged her fashion industry connections to establish relationships with luxury designers.

 “Fashion is typically really under-resourced in terms of tech,” Bryan tells TechCrunch. “[The fashion industry] is great at the creativity part but it’s tough, especially with jewelry because you really have to put up a lot of capital.”

Pietra’s plan is to create a high-end marketplace for consumers to connect with jewelry designers. To do this, the team has adopted the standard marketplace approach, taking a 30% marketplace fee from sellers, as well as a 7% fee from buyers commissioning jewelry on the platform.

“Whether you do custom jewelry or engagement jewelry or you do jewelry for celebrities like Drake, you can come on Pietra and connect with a global marketplace,” says Trivedi.

The jewelry market is expected to be worth more than $250 billion by 2020, according to McKinsey research. And where there’s a billion-dollar market, there are VCs. 

“Even though gemstones and jewelry have been at the center of art, commerce, and culture since the dawn of human civilization — going from stone jewelry created 40,000 years ago in Africa to the trade routes between East and West to Fifth Avenue in New York to the Instagram feed on your phone — the technology for discovering, designing, and purchasing jewelry online hasn’t evolved much at all,” writes a16z’s Chen, who overlapped with Trivedi during his Uber tenure.

Pietra completed its official launch this week. It has 100 designers on the platform and counting, along with what the founders say is a lengthy waitlist.

In other news

This week I published a long feature on the state of seed investing in the Bay Area. The TL;DR? Mega-funds are increasingly battling seed-stage investors for access to the hottest companies. As a result, seed investors are getting a little more creative about how they source deals. It’s a dog-eat-dog world out there and everyone wants a stake in The Next Big Thing. Read the story here.

Demo Day

Y Combinator graduated another batch of 200 companies this week. We were there both days, taking notes on each and every company. To make things easy on you, I’ve put together the ultimate YC reading list:

• All 84 startups from Y Combinator’s Demo Day 1
• All 82 startups from Y Combinator’s Demo Day 2
• The 11 best startups from YC’s Demo Day 1 (Extra Crunch membership required.)
• Our 12 favorite startups from Y Combinator’s S19 Demo Day 2 (Extra Crunch membership required.)
• YC’s Michael Seibel on building startups and early-stage deal-making
• YC is doubling down on these investment theses in its latest batch

Here’s a look at some of the profiles we’ve written on the S19 companies:

• Fresh out of YC, Tandem lands millions from a16z
• Stoic is a journaling app with a focus on understanding your feelings
• Narrator wants to become the operating system for data science
• This startup is building a weed breathalyzer for cops 
• Lokal wants to bring local news to 900M Indians in their regional languages
• Holy Grail is using machine learning to build better batteries
• YC’s latest bet is building a cyberpunk anime MMO
• Rent the Backyard wants to build a studio apartment in your yard
• Shiru is developing a protein replacement for food additives
• Lumineye helps first responders identify people through walls
• GradJoy is a fintech startup to help you knock out your student loans
• Traces AI is creating a less invasive alternative to facial recognition tracking

Listen

We recorded two great episodes of Equity, TechCrunch’s venture capital podcast, this week. The first was with YC CEO Michael Seibel, in which he speaks to trends at the seed stage of investing, changes at the accelerator program, including its move to San Francisco and more. You can listen to that one here. Plus, we had on Unusual Ventures co-founder and partner John Vrionis, who talked to us about direct listings versus IPOs and the future of DoorDash and Airbnb. You can listen to that one here.

Tips for B2B startups

Contributors Tyler Elliston and Kevin Barry share advice for B2B companies: “Over the years, we’ve seen a lot of B2B companies apply ineffective demand generation strategies to their startup. If you’re a B2B founder trying to grow your business, this guide is for you. Rule #1: B2B is not B2C. We are often dealing with considered purchases, multiple stakeholders, long decision cycles, and massive LTVs. These unique attributes matter when developing a growth strategy. We’ll share B2B best practices we’ve employed while working with awesome B2B companies like Zenefits, Crunchbase, Segment, OnDeck, Yelp, Kabbage, Farmers Business Network, and many more.” Read the full story here. (Extra Crunch membership required.)

Source: Tech Crunch Startups | Startups Weekly: Diamond-encrusted disruption

It’s easy to forget that Silicon Valley starts with ‘silicon’, and that there would be no technology innovation without innovation at the silicon level. And Graphcore is well aware of that as the Bristol-based company is designing its own dedicated AI chipset. That’s why I’m glad to announce that Graphcore co-founder and CEO Nigel Toon is joining us at TechCrunch Disrupt Berlin.

Graphcore has managed to attract a ton of attention from day one. Originally founded in 2016, the startup has raised more than $300 million from top investors, such as Sequoia Capital, BMW, Microsoft, Samsung and a ton of others.

The company last raised a $200 million Series D round led by Atomico and Sofina. It values the company at $1.7 billion.

So what is the magic product behind Graphcore? The startup’s flagship product is an Intelligence Processor Unit (IPU) PCIe processor card combined with a software framework. Essentially, it lets you build your own AI applications more efficiently. Those dedidacted AI chips should perform better than repurposed GPUs.

Tobias Jahn, principal at BMW i Ventures, summed it up pretty well in a statement for the Series D round: “The versatility of Graphcore’s IPU – which supports multiple machine learning techniques with high efficiency – is well-suited for a wide variety of applications from intelligent voice assistants to self-driving vehicles. With the flexibility to use the same processor in both a data centre and a vehicle, Graphcore’s IPU also presents the possibility of reduction in development times and complexity.”

It seems crazy that a tiny startup is competing directly with giant chip companies, such as Nvidia, AMD, Intel, Qualcomm, etc. But this isn’t Nigel Toon’s first company. He has been the CEO of Picochip and Icera, two companies that have been sold to Intel and Nvidia.

Graphcore believes that there’s an underserved niche with a lot of potential. And it feels like there’s a race to create the most efficient AI chip. So I can’t wait to hear Nigel Toon’s take on that race.

Buy your ticket to Disrupt Berlin to listen to this discussion and many others. The conference will take place on December 11-12.

In addition to panels and fireside chats, like this one, new startups will participate in the Startup Battlefield to compete for the highly coveted Battlefield Cup.

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Graphcore (graphcore.ai) is a new silicon and systems company based in Bristol, UK and Palo Alto, USA that has developed a new type of processor, the Intelligence Processing Unit (IPU), to accelerate machine learning and AI applications. Since its founding in 2016, Nigel has secured over $300m in funding and support for the company from some of the world’s leading venture capital firms including Sequoia Capital, Foundation Capital and Atomico, from major corporations including BMW, Bosch, Dell, Microsoft and Samsung and from eminent Artificial Intelligence innovators.

Nigel has a background as a technology business leader, entrepreneur and engineer having been CEO at two successful VC-backed processor companies XMOS and Picochip (sold to Nasdaq:MSPD, now Intel), a founder at Icera (sold to Nasdaq: NVDA) and VP/GM at Altera (Nasdaq: ALTR, sold to Intel for $17Bn) where he spent over 13 years and was responsible for establishing and building the European business unit that he grew to over $400m in annual revenues. Nigel was a non-executive director at Imagination Technologies PLC until itsacquisition in 2017 and is the author on 3 patents.

Source: Tech Crunch Startups | Graphcore founder Nigel Toon to talk about AI chips at Disrupt Berlin