Editor’s Note
The certification of the 50.25-carat “Shiphra” diamond by the International Gemological Institute marks a significant milestone for lab-grown gemstones, highlighting advancements in sustainable production.

The International Gemological Institute (IGI) has certified the largest lab-grown diamond to date. Named Shiphra, it weighs 50.25 carats and was produced by Ethereal Green Diamonds in India.
The competition for natural diamonds is growing, not just in quantity. Through ongoing optimization of manufacturing processes, the quality and size of lab-grown diamonds are continuously increasing. The current record holder is a 50.25-carat diamond with an emerald cut. The IGI certificate attests to its color G, clarity VS2, and an excellent cut. The 150-carat rough crystal from which it was cut was produced by the Indian company Ethereal Green Diamonds using the CVD (Chemical Vapor Deposition) method. The growth process took eight months. The record-breaking lab-grown diamond, christened Shiphra, was presented at JCK Las Vegas, which took place from May 31 to June 2.
For Tehmasp Pinter, President and Managing Director of IGI India, the gemstone represents a paradigm shift in the field of lab-grown diamonds.
Ethereal Green has announced that the diamond has already been sold to Shiphra Jewelry, a Swiss company that uses exclusively lab-grown diamonds for its jewelry pieces.
