4 coats Butter London Knackered on the left, 3 coats of OPI NLTM with 1 coat ChG Fairy Dust on the right
For the pics below I put 2 coats of NLTM and 1 coat of Fairy Dust on my index and ring fingers, BL Knackered on my middle finger and pinky. All are over 2 coats of Savita.
Well there you have it. I didn't bother swatching it over black since they weren't as close as I thought. Does it make you happy or sad that I didn't find a dupe?