Hello, I am going to purchase a Gems 2 violin from violinslover.com on Ebay. However, I noticed there are a few different types. For example in Gems 2 there is the "antiqued" Stradivari, the "fine quality" advanced student Stradivari, etc. There is also a Gems 1 for roughly the same money which is the "workshop" Stradivari. I am new to violins so can someone help me out with this confusion? Thanks!

PS: There is also the Guarneri Gems 2 model. Is there a big difference between 4/4 Gems 2 models? Also, is the Gems 1 better in terms of quality? The 4/4 workshop Stradivari is actually cheaper than one of the Gems 2 models.