Yes, there are two versions of Spectra. The first one has earrings that have longer black chains. This version has a more 'grown-up' face.
The 2nd version has earrings with shorter silver chains. Her hands and feet are very shiny looking and more clear than the 1st version's.
If you check the MH thread, I just posted a few pics of my girl, she is the 1st version. <3
As for price, I got my girl MIB on ebay for $35 plus $8 for shipping.