Single oval lab grown diamond four claw set in a narrow platinum ring mount. 0.70ct lab grown diamond, IGI certificated G 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.