British-based Meylor Global, an international company that produces lab-grown diamonds, has produced a lab-grown diamond weighing 150.42 carats – which has been graded as the largest ever, IDEX Online reports.

According to the International Gemological Institute (IGI), the blue gem measures 28.55mm x 28.25mm x 22.53 mm, beating the 115.65-carat record set by the same company in September 2020.

In addition, Meylor Global also produced a gray 141.58-carat LGD measuring 28.90mm x 28.50mm x 20.75 mm, which was also analyzed by IGI. Both, according to the report, were produced using the High Pressure-High Temperature (HPHT) method and are type IIb crystals, “a semiconducting category associated with diamond-based electronics.”