Adamas One is a development-stage lab-grown diamond company based in Greenville, South Carolina. It grows single-crystal diamonds using a proprietary Chemical Vapor Deposition (CVD) process, which builds diamonds layer-by-layer by depositing carbon atoms from ionized gas onto a diamond seed in a controlled chamber. The resulting diamonds are physically and chemically identical to mined diamonds. Adamas One targets two markets: gemstone diamonds sold for jewelry, and industrial diamond materials used in precision machining, cutting tools, optics, and emerging applications like semiconductors, EV power electronics, and quantum computing. On the gemstone side, Adamas One grows rough diamonds that are cut and polished by third-party contractors, then sells finished stones wholesale to brokers, cutters, and retailers. On the industrial side, Adamas One sells single-crystal diamond materials directly to business customers, often to custom specifications. The company is pre-scale, with minimal revenue and 12 employees, and relies on external financing to fund capacity expansion. Revenue scales with the number of CVD machines in operation, with each growth cycle taking up to 45 days. Adamas One plans to expand capacity by adding machines at its Greenville facility, pursue vertical integration by acquiring cutting and polishing companies, and launch a direct-to-consumer fine jewelry line. Adamas One completed its IPO on Nasdaq in December 2022 and trades under the symbol JEWL.