Being British, I spell the -ery form of jewel as jewellery. But I pronounce it ˈdʒuːəlri. (Or I can smooth the vowels, giving ˈdʒʊəlri.) Some Brits, though, pronounce it ˈdʒuːləri, which I have labelled in LPD as “non-RP”: it certainly triggers in me adverse reactions as strong as those triggered by prəˌnaʊnsiˈeɪʃn̩.
Americans spell the word jewelry, which fits my pronunciation and presumably theirs too.
The -(e)ry suffix normally appears as -ery (potentially disyllabic) when attached to a stem that is monosyllabic or final-stressed, but as -ry (monosyllabic) when attached to a stem ending in an unstressed syllable. Thus we have bakery, fishery, slavery, buffoonery, machinery, but mimicry, rivalry, devilry, archdeaconry, weaponry.
So if jewel is pronounced as two syllables, ˈdʒuː.əl, we would expect jewelry ˈdʒuːəlri. If on the other hand it is pronounced as one syllable, dʒuːl (as in popular London speech), or as the derived dʒʊəl, we would expect jewellery ˈdʒuːləri, ˈdʒʊələri. But in this word, exceptionally, it doesn’t seem to work like that.
Having just discovered how to do so, I have now changed the blog settings so that anyone can comment without being registered. If we get swamped with spam, I’ll change them back.
The font is now set throughout as <font face="Charis SIL Compact", "Charis SIL", "Doulos SIL Compact", "Doulos SIL"," Lucida Grande", "Lucida Sans Unicode">. I find that I get different results on different computers and with different browsers. Firefox works fine on my desktop computer, but produces a nasty pixellated result on my laptop (on which IE shows everything fine). I have no idea why that is.