What are lab-grown Diamonds? Lab-grown diamonds are diamonds produced by scientists using technology that recreates the conditions under which diamonds form deep in the earth. A lab-grown diamond is chemically, physically, and optically identical to diamonds that formed naturally - the only factor that makes them different from a natural diamond is that they originate from a lab. For that reason, lab-grown diamonds cannot be considered ‘rare’ or ‘unique’ and as such they represent a more affordable option when compared to natural diamonds and are valued at a considerable lower price per carat. Lab grown diamond toi et moi ring in Platinum IGI Certificate of two main lab diamond stone with laser inscription on them 1st - carat- 3.32 ct color - Fancy Vivid blue Clarity - VVS2 polish - Excellent Symmetry - Excellent Certificate -LG634400641 side stone 4 diamonds, cut Tapered Baguette, color E-F, clarity VVS-VS, total carats 0.43ct.