I missed this post...
If you go back a few pages you can see pics of bleu acier with both gold and silver. This color looks beautiful with either, so I would go on whichever one appeals to you more. The gold metal goes beautifully with the blue tones in the bag, while the silver works really nicely with the gray undertones. You can't go wrong. I feel like a broken record because I say this all the time, but keep your eyes on hgbagsonline.com. Erica gets current season ME bags in all the time, and she ships internationally. You could contact her to see if she will get the Blue Acier with Silver. I've bought from her but never spoken to her, but I've heard she's great to work with.