Three graduated round brilliant cut lab grown diamonds each four claw set in white gold on a 18ct yellow gold shank. 1.00ct total diamond weight. Centre diamond 0.58ct, IGI certificated D colour, VS1 clarity. A lab grown diamond is a real diamond that is grown in a laboratory rather than naturally within the Earth's core, it has the same chemical and physical structure as a natural diamond. The main difference between lab grown and natural diamonds is the origin and rarity. To find out more information about lab grown diamonds please read our blog.