- Who
- Meylor Global LLP, Andrey Katrusha
- What
- 150.42 carat(s)
- Where
- Ukraine (Kyiv)
- When
The largest synthetic uncut diamond is 150.42 carats, achieved by Meylor Global LLP (UK) and Dr. Andrey Katrusha (Ukraine) in Kyiv, Ukraine, verified on 16 November 2021.
The finished diamond measures 28.55 x 28.25 x 22.53 mm.