I am hoping HHPmom (and some of the other posters) will help you with this one, she knows single pearls and their pricing.
I think it's very beautiful, but it's hard to tell what's going on, the photo is a little odd, even the chain looks green. Is it green gold? Does it have that green overtone in RL? If so, then I think it's a real beauty!
No it is not green in RL at all...it does have a slight emerald or peacock tone which the picture totally ruins. Their photos on their website is horrible. I wonder if they would let me take RL photos before purchasing? They have a no- returns policy