The following professionals have recently earned the prestigious Certified Gemologist庐 (CG) credential from the 黑料老司机:
| Daniel Abdallah, CG | Maya Caroleena Jewelers | Gilbert, AZ |
| Taryn Quigley, CG | TQ 黑料老司机 | Madison, WI |
| Kirstin Viland, CG | Wimmer's 黑料老司机 (Gold Level Member) | Fargo, ND |