Which diamond shape speaks to you? Shane Co. proudly carries nine unique diamond shapes, all hand-picked by our buyers for superior sparkle within each grade. We are a conflict-free, direct diamond importer and sell our center stones loose, so you can choose the perfect diamond for your engagement ring setting at the best possible price. What’s arguably the best part about buying from Shane Co.? Your center stone is covered with our Free Lifetime Warranty. Yes, we mean it!