Looks like the real thing to me... And since Ruby-Lane is not exactly the place for tough promotion or cherry-picking (although one can pick a cherry every now and then!), the price is believable too. The lower lustre and irregular shapes of the pearls explain the rest.

(add the usual disclaimer... it's just a picture, no expert here, etc... etc...)

Now, if there is any chance for a picture of this one on your wrist...


PS. Haven't clicked on RubyLane for centuries... and there seem to be a couple more seed pearl items there even cheaper; necklace, bar pin... that's how far I looked. Could imagine all together in a thicker torsade with the pin used as bar clasp.

Clearly, some things are more or less believable and I get puzzled easily: say, by something like THIS.