求助，一份彩钻清单的标头什么意思？求解释
| Lot ID | LotName | Quantity | Weight | Lab | Shape | Size | Color | Clarity | Cut | Polish | Sym | Flou | M1 | M2 | M3 | Depth | Table |
| 2011363 | 31295 | 1 | 1.39 | GIA | RAD | 1.25-1.49 | FIY | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||||
| 2011366 | 32677 | 1 | 1.72 | GIA | PS | 1.50-1.99 | FIY | VS1 | G | G | STG | 9.54 | 6.51 | 4.00 | 61.40 | 57.00 |
大侠我再问问
荧光中，STG,MED,FNT 分别表示什么意思啊？ 
