Rohan Desai is the Lab-Grown Diamond and Sustainability Specialist at Ivana Jewels, with more than nine years spent at the meeting point of diamond technology and responsible sourcing. He understands how CVD and HPHT lab-grown diamonds are created, how they compare with mined stones, and why IGI and SGL certification matters for buyers. Rohan writes about the science behind lab-grown diamonds, their lower environmental impact, and how to shop ethically, giving readers honest answers to the questions that matter most before they buy.