LuAG (Lutetium Aluminum Garnet), also known as Lumogarnet. Lab-grown material with intense neon yellow color and high density. Composed of lutetium aluminum oxide, it is among the most UV-reactive of the synthetic garnets, showing INTENSE fluorescence under ultraviolet light. Valued for its brilliance and durability in both optical and faceting

4.75 g / 23.75 carats / 14.2 x 8.5 x 12.0 mm 

*The gemstone was cut from this material