Antique, (older than 100 Years - late 1890's) American Brilliant Cut Glass 12" Vase.   
This vase contains most cut glass designs and this artisan displayed his true talent and workmanship in presenting many different and unique patterns in this piece.   This is one of the most unique pieces I have seen.   Check out pictures carefully.
The vase measures, 12" tall, 5" in diameter top and bottom, 3/8" thick glass and weighs over 5 pounds.
Vase contains not only cut designs but cut petal daises, foliage and ornamental checkerboard cuts and etchings throughout this piece. 
There are no visible chips or damage noted in this piece after careful examination.  It is in exceptional condition.   The base as pictured above does have some surface scratches from age and movement  over the years but the rest of the vase is clear, clean and brilliant cut.
This piece has been used very minimally - sitting in a cabinet most of the time on display.
Examine this unique find in the pictures above with the zoom and you too will realize what a find this Vintage piece really is for your collection.

Questions, Please e-mail.   Thanks.