High Elvish because a bit of magic will help.

I actually quite like Adobe Garamond Pro Italic. It has, in my opinion, an unexpected elegance. Apart from that maybe Bembo or Caslon.

I don’t think a classical lead typeface (Garamond, Bembo …) suits best for engraving. It should be a typeface which has something engraving-like in the very nature of its style.
Of the well-known this could be something like Didot or a classical script face. If you’re looking for something more fancy, look at
http://typophile.com/node/58746
– its perfect for engraving (and all your other wedding stationary).

Ah, above all: * B E S T _ W I S H E S *

> our engraver tells us that we can pick any typeface we like

Lucky you! I was presented with the following five choices:

• Times New Roman
• Arial Bold Italic
• Mistral
• Bernhard Fashion
• Shelley Allegro