How to spot a diamond

Allison Ellsworth, founder of ​Poppi soft drinks, started the beverage business as a kitchen experiment, with a Soda Stream and apple cider vinegar. She speaks to Leanna Byrne about pitching for funding on TV programme Shark Tank while nine months pregnant, relaunching during Cov ...  Show more

Headspace started life as a mindfulness app. Now it's partnering with the US Navy and investing in artificial intelligence for mental health support.The company's CEO Tom Pickett speaks to us about therapy, the increasing role of technology, and tackling burnout at scale.If you'd ...  Show more

The natural diamond industry is facing an existential threat: lab-grown diamonds. They’re chemically and physically identical to natural stones, and they're just a fraction of the price. Eleanor Olcott, the FT’s China technology correspondent, travelled to the epicentre of lab-gr ...  Show more

They’re shiny rocks that we’ve somehow agreed embody romance and eternity. But diamonds, it turns out, are not as rare as we think. And these days, they can be made in a lab. So why do we continue to spend so much money on them? This week, the story of a century-long, internation ...  Show more

Diamonds are considered one of the world’s most valuable gemstones. But what if their prices are high due to brilliant marketing and supply monopoly tactics, not because of their rarity? And if that’s the case, are diamonds just a run-of-the-mill gemstone? Learn more about your a ...  Show more

The market is seeing a spate of green diamonds coming back from grading labs as treated or “undetermined,” says Thomas Hainschwang, cofounder of GGTL Laboratories. Plus: synthetic diamonds, trends in grading, and the science of identifying origin.