Cult Nails Feelin’ Froggy Nail Lacquer ($10.00 for 0.50 fl. oz.) is medium-dark green green with subtle yellow undertones and emerald green shimmer. I think this might look more emerald green against those with cooler undertones (my yellow undertones seem to bring out the subtle yellow undertones in the polish). I love that I don’t have anything that’s close to this shade! There’s a soft, muted quality to it that is missing from possible dupes. Sinful Colors HD Nails is brighter, more yellow-toned. China Glaze Starboard is a grassy green and has a cream finish–same with Essie Pretty Edgy.