You are not the average consumer, and as such, you do not settle for jewelry that can be considered merely average. This is where fantastic specimens of that elusive blue diamond come in. Imagine proposing–or being on the receiving end of a proposal–that includes a blue diamond engagement ring. The proposal itself may not be a surprise, but the ring sure can be. If you want even more of a specialty feel, consider finding a loose blue diamond. The blue shade occurs naturally when boron and carbon combine while a diamond is forming. These diamonds are graded in a similar way to clear, colorless diamonds, and they are quite the conversation starter. Because the sellers on eBay are so well-informed, you can find the perfect blue diamond, whether you hope to put together wedding jewelry or simply don a necklace that you can love and wear for many years to come.