I know nothing about marks, but recently I did find a Stuart Hardwicke goblet, which is very much the same shape as this.
It's one of the most beautiful goblets I've ever seen or held - (for a piece for a table setting, I'm not going to get into being told I'm insulting Jacobean glass.)
I'm absolutely positive it's rock crystal cut, there are no sharp edges, just a fabulous "watery" appearance.
Being the same shape, and the very superior cold work, I would imagine they are from a similar period. I did track mine down on replacements to find the name of the pattern.