San Francisco-based Diamond Foundry is taking above-ground diamonds to massive scale, providing the clarity and quality of mined diamonds en masse, with no ethical issues like the ones that plague blood diamonds. Through an intense lab process, Diamond Foundry creates jewels via plasma reactor technology that mimics the outer core of the sun. Founded in 2013, the company currently makes 100,000 carats a year in its South San Francisco facility, with 1 million carats per year on the way once its Wenatchee, Washington, factory opens in 2018. Those diamonds are then sold either wholesale to jewelers around the world, or used in-house for its direct-to-consumer jewelry brand, Vrai & Oro, which Diamond Foundry acquired in November 2016. Counting Leonardo DiCaprio among its investors, Diamond Foundry is also wooing the fashion set with Paris Fashion Week events and partnerships with Barneys New York and Swarovski.