Stainless steel is making a major comeback, and it's much less fragile and cheaper than platinum and gold. Wood rings are surprisingly durable and make an earthy statement. If you're just not a diamond girl, then it's perfectly OK to choose another precious stone. Trendsetter Kate Middleton went with an heirloom with her sapphire engagement ring. And if your philosophy is reduce, reuse, recycle, then why not follow suit by repurposing a vintage family ring? It doesn't necessarily have to be an engagement ring; if your grandmother or another relative has a beautiful ring, then you can have a jeweler customize it to your taste. Likewise, don't overlook pawn shops and eBay - you can net a great deal on nearly-new rings or choose loose stones for your own creation. Who says your engagement has to follow the rules?