What you have are bead-nucleated, cultured freshwater pearls that are of the same genre of ripple strands.
There is a huge variance in wholesale pricing from as little as $10 per strand to special strands that come from just one company I know of that range from $1,500 to more than $2000 per strand. The strand in the photo is in the lower range of quality, but a decently large size and extra length, giving it a bit more value.
For boutique high retail, I don't think $1000 would be completely unreasonable.