A single pear shaped lab grown diamond five claw set in a platinum ring mount with a row of small lab grown diamonds set under the head. 1.09ct pear shaped lab grown diamond, IGI certificated F colour, VVS2 clarity. Other diamonds 0.05ct total 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.