Vampires are big business...and not only in Transylvania.

Kristen Stewart, playing Bella in the Twilight Saga series of vampire flicks, walked the red carpet at the L.A. premiere of Breaking Dawn – Part I, the first part of the final instalment of the Twilight Saga series - in an iolite gown.

Stewart’s co-stars, Nikki Reed and Ashley Greene wore green amethyst and ruby respectively, with Mackenzie Foy in sapphire, and Stephanie Meyer in black. So what is the common thread here, other than an on-screen penchant for blood as a thirst quencher? You guessed it; all the gowns are a gem color.

Now, what is the logical choice to accompany each gown? No, not a man; rather a fancy color diamond. There is the perfect color to either match or complement any gown. From blue to purple, green to red, yellow to black and other colors or mix of colors; there is a color to suit every gown, mood, budget…and a beautiful creature of the night.