These certainly look to be of the "Golden Lipped" variety.
And golden pearls are being produced today! So, they are commercially coveted!
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Different locations will yield different colors...
You have a mixed batch there...the more "flattened" pearls look like freshwater pearls (seem like odd ikecho to me)...the rounder ones I am not sure...just because of their color I would say dyed freshwater pearls
The pearls look like high quality! Might even be natural...I do find the shapes very oval-shaped, then the green-colored spots on the metal...
It might be a good idea to send it over to appraisal at a reputable gem lab!