Thanks all for your thoughts, Sue, Rosie and John
I've added a couple of extra pictures next to a 6 inch globe, for comparison. Interestingly, the larger globe weighs around 1kg more than the other slightly smaller one. Its quite a thickly blown example, which no doubt accounts for much of this extra weight. The ground base to the larger globe is also noticeably much wider.
The colours are fabulous, I'll try to take a few pictures in natural daylight tomorrow, weather permitting. Certainly, not the cheapest globe I've purchased, however, certainly one of the most pleasing.