Red Oval Ruby from Burma

About Ruby

Ruby is the red variety of corundum, an aluminium oxide mineral. Its colour ranges from pinkish red to vivid crimson and deep purplish red; the finest colour is often described as “pigeon blood”, although this is a trade expression rather than a strict scientific grade. Ruby is usually transparent to translucent, while heavily included stones may appear more opaque. Needle-like rutile inclusions can create asterism, producing…