After 11 years my ring is needing some rehab. The head has to be replaced and I was considering at some point swapping my round 2.10 CE stone for a LGD. I was at ID Jewelry yesterday for the repair and he said to do it all at once since I was considering anyway. I didn’t have enough time to really look at stones although he showed me one that looked great to me and was wayyyy better than my previous stone. Before I pull the trigger on another stone, I need to know what the best parameters are for a LGD. The stone he showed me was GIA for example, but do I need that? Is ideal cut IGI better than a good cut GIA? A decade ago when I was obsessed with this forum, GIA was king but also LGD weren’t a thing (I would’ve had one if they were).