Blue Spinels engagement rings are never short of stunning. In our custom-blended 18K Natural Gold, notice that this shade of gold is unlike traditional 18K yellow gold seen typically in Asia.  Chosen to be paired with this shade of blue-violet spinel, this custom-blend of natural gold works well for this blue-violet spinel. Under different light sources, blue spinels sometimes display various shades of grey and violet. This is one such piece although the camera did not capture the grey in this spinel at all. What is beautiful about the Spinel is that it is usually and often an unheated, untreated gemstone. It is naturally brilliant and fairly eye clean. With…