I went out yesterday and decided to purchase Annabelle loose eyeshadow (Gold Digger, LE) like Shawna said. I was kinda skeptical cause the colour from the outside looked more like a bronzed rose colour than gold. But when I opened it, the colour looked just like what I was asking for - a tarnished gold
It's exactly what I was hoping Bagatelle would be (although I've never owned one, so I can't really compare) If I ever run out, I'll definitely be looking into MAC's Rose Gold as a replacement. Thanks for all your help!