Single oval lab grown diamond four claw set in a narrow platinum ring mount with a hidden diamond halo under the head. 1.50ct diamond, D colour, VS1 clarity, IGI certificated. 0.07ct total other diamond weight. 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.