Hello and let me be the first to
WELCOME you to the GMB. :hi: There are many knowledgeable and friendly people whose expertise covers a wide range in the world of glass. Before I offer my thoughts on your paperweight, let me say, I am
not one of them (particularly knowledgeable, that is).

Yes, your paperweight appears to be genuine Baccarat from what I can tell from the photos. (They do not enlarge very much.)
There have been several discussions regarding this type of facetting/cut on these paperweights as to whether (or not) the design is original to the weight and, I believe, this is a cut Baccarat has used on some of its weights. There is always the chance the weight may have been severely modified due to damage. Maybe someone else can direct you to the other posts. What is it you are noticing about your weight that leads you to believe it may have been modified?
As far as the bubbles, are they scattered throughout the clear glass or are they on the leaves? (The ones I see on the leaves are intentional .... dewdrops I believe.
Finally, it looks like your weight has the number 98 on the base which may indicate this is a limited edition and yours is #98. That's good!
Hope this helps and you can be sure others will be able to say "yea" or "nay" to what is posted above.
Happy New Year .... Lily

Here's a link to a Baccarat weight with a similiar cut. Click on Fall 2008 auction results and then put 219 in the search box. Hope it works! :X:
http://www.selman.com/pwauction/cat_past.html