Yttrium aluminium garnet (Ce:YAG) is used as a phosphor in cathode ray tubes and white light-emitting diodes, and as a scintillator. YAG for a period was used in jewelry as a diamond and other gemstone simulant. Colored variants and their doping elements include: green (chromium), blue (cobalt), red (manganese), yellow (titanium), purple (neodymium), pink, and orange. As faceted gems they are valued (as synthetics) for their clarity, durability, high refractive index and dispersion. The critical angle of YAG is 33 degrees. YAG cuts like natural garnet, with polishing being performed with alumina or diamond (50,000 or 100,000 grit) on common polishing laps. YAG
The Genius: Black Garnet the dealers for them to safeguard, and the winner of the death match would have his/her garnets given back to him/her. Black Garnets Season 3 showcased a new addition in the garnet pool: Black Garnets. Players that had won a death match would receive a black garnet. It may also be used like a garnet (such as in trading and/or deals with players) but may not be used in biddings (with the use of garnets). In episode 10, each black garnet was converted to 2 garnets (worth 2,000,000 won or 2,000 USD). Black Missions Players that had 3 black garnets