Be careful! I baked a baguette CZ eternity band as I usually do any other ring (clean it well, ceramic dish, 400 degrees, 45 minutes, cool in oven). The baguettes took on somewhat of a brownish hue after being baked! Maybe it was because they were crappy stones from a Fantasy Jewelery Box ring, but just wanted to throw it out there. The baguettes were the only stones I've ever had negative results with after baking!